H04M 2017/246
Using signalling
Official title: {using signalling, e.g. USSD, UUS, DTMF}
H04M2017/246 (Using signalling) appears on 4 US grants and 5 published applications in this corpus.
Search patents in H04M- Granted patents
- 4
- Published applications
- 5
- Assignees
- 3
- Inventors
- 14
- Latest grant
- 23 Apr 2024
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Most cited
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