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US2280763A
(en)
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Phonographic apparatus
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BE363396A
(OSRAM)
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|
|
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US2174156A
(en)
|
|
Phonographic apparatus
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US1835073A
(en)
|
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Phonograph pick-up device
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CH260626A
(fr)
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|
Pick-up.
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US629963A
(en)
|
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Gramophone.
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US970655A
(en)
|
|
Horn-supporting crane.
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US1158401A
(en)
|
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Talking-machine.
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US2819088A
(en)
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Tone arm constructions for phonographs
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US3450410A
(en)
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|
Mechanical sound system for phonograph record player
|
|
US2771515A
(en)
|
|
Electromechanical transducers
|
|
US1334601A
(en)
|
|
Tone-modifier for talking-machines
|
|
BE333831A
(OSRAM)
|
|
|
|
US1394176A
(en)
|
|
Damper for talking-machines
|
|
US1215410A
(en)
|
|
Phonograph.
|
|
US1439718A
(en)
|
|
Phonograph
|
|
US653654A
(en)
|
|
Device for reproducing sounds.
|
|
US706627A
(en)
|
|
Attachment for phonographs.
|
|
US1393106A
(en)
|
|
Sound-reproducer for phonographs
|
|
US2386089A
(en)
|
|
Phonograph pickup device
|
|
US1271527A
(en)
|
|
Sound-regenerating machine.
|
|
US1395195A
(en)
|
|
Tone-modifier for sound-boxes
|
|
US1266096A
(en)
|
|
Tone-arm for talking-machines.
|
|
US1106237A
(en)
|
|
Brake for phonographs.
|
|
US1707868A
(en)
|
|
Portable talking machine
|