H04R 17/04

Gramophone pick-ups using a stylus

Official title: Gramophone pick-ups using a stylus; Recorders using a stylus

H04R17/04 (Gramophone pick-ups using a stylus) appears on 160 US grants and 15 published applications in this corpus.

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Granted patents
160
Published applications
15
Assignees
76
Inventors
261
Latest grant
5 Jun 2018

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H04R 17/04: granted patents and published applications per publication year
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197660
197750
197820
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198340
198420
198510
198610
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198860
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200264
200351
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201301
201411
201520
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