H04M 5/14

Applications of speech amplifiers

H04M5/14 (Applications of speech amplifiers) appears on 1 US grants and 1 published applications in this corpus.

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1
Published applications
1
Assignees
1
Inventors
1
Latest grant
19 Nov 2019

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H04M 5/14: granted patents and published applications per publication year
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201801
201910

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