H04M 17/30

Prepayment of wireline communication systems, wireless communication systems or telephone systems: using

Official title: {using a code}

H04M17/30 (Prepayment of wireline communication systems, wireless communication systems or telephone systems: using) appears on 43 US grants and 52 published applications in this corpus.

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Granted patents
43
Published applications
52
Assignees
15
Inventors
52
Latest grant
10 Jun 2025

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H04M 17/30: granted patents and published applications per publication year
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200811
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201002
201101
201213
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201436
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201638
2017107
201832
201961
202055
202123
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