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Amplifier
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Condenser microphone amplifier
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Apparatus for printing from a negative sound record to a positive
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Film splicing machine
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Motion picture machine
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Moving talking picture apparatus
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Combined moving picture and sound camera
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Sound-record film and apparatus
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Apparatus and method for copying photographically-recorded sound records
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Method and apparatus for producing talking moving pictures
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Combined moving picture and sound camera
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Sound record
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Film punch
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Combined motion-picture and sound camera
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Set or scenery
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Reproducing apparatus
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