FR1080514A
(en)
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1954-12-09
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Permanent magnet and its manufacturing process
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AT295618B
(en)
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1972-01-10
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Headphones, in particular for the stereophonic reproduction of sound events
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FR55787E
(en)
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1952-09-05
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Method and devices applicable in particular to cinema, radio broadcasting and television, and making it possible in particular to obtain stereophonic sound reproduction
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FR989642A
(en)
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1951-09-11
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Method and devices applicable in particular to cinema, radio broadcasting and television, and making it possible in particular to obtain the stereophonic reproduction of sound
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FR951325A
(en)
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1949-10-29
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Acoustic devices and in particular telephone receivers
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FR1037742A
(en)
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1953-09-22
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Method for making a sound recording, in particular of a stereophonic sound recording
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SU74944A1
(en)
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1948-11-30
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Method of making ferromagnetic tape
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SU133001A1
(en)
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1959-11-30
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Dual channel stereo sound reproducing device
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SU75027A1
(en)
|
1948-11-30
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Method of using photocell in sound film equipment
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FR1122122A
(en)
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1956-09-03
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Method and device for the manufacture of lattice beams, in particular beams for floors, and lattice beams thus produced
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FI26943A
(en)
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1954-04-10
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A method for achieving the desired directional effect of a loudspeaker by smoothing the propagation times of incoming sound energies in front of and behind the loudspeaker and a loudspeaker manufactured according to the method
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FR996641A
(en)
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1951-12-24
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Light modulator applicable in particular to stereophonic sound recording
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FR971838A
(en)
|
1951-01-22
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Method and devices for the reproduction of elementary images, in particular of films, taken in a stereoscopic manner
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AU127238B2
(en)
|
1948-04-08
|
Improvements in method of manufacturing sound reproducing devices and tothe devices resulting thereupon
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FR989032A
(en)
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1951-09-04
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Improved films, in particular for cinematography and method for obtaining them
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FR1003831A
(en)
|
1952-03-24
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Magnetic cores, intended in particular for high-frequency apparatus, and method of manufacturing these cores
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FR1048923A
(en)
|
1953-12-24
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Photo-electric sound reproduction
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AU1646844A
(en)
|
1948-04-08
|
Improvements in method of manufacturing sound reproducing devices and tothe devices resulting thereupon
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FR1005534A
(en)
|
1952-04-11
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Improvements to processes and installations such as those for cinema and television
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FR1004375A
(en)
|
1952-03-28
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channel element made of molded material, method and equipment usable in particular for its manufacture and transport
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FR902332A
(en)
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1945-08-28
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Amplifier editing, in particular for the reproduction of sound films
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FR1033194A
(en)
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1953-07-08
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Method for reproducing plots and in particular optical networks
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JPS51134101A
(en)
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1976-11-20
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Stereophonic sound reproducing equipment
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CH266984A
(en)
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1950-02-28
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Audio frequency band filter with adjustable bandwidth.
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GR10991B
(en)
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1947-01-30
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SYSTEM FOR CONVERSION AND PROJECTION OF CINEMA MOVIES, FOREIGN LANGUAGE SPEAKERS, IN GREEK SPEAKER.
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