H04Q 2213/177
Number sending signals
Official title: Number sending signals, e.g. dialling tone, proceed to send
H04Q2213/177 (Number sending signals) appears on 1 US grants and 0 published applications in this corpus.
Search patents in H04Q- Granted patents
- 1
- Published applications
- 0
- Assignees
- 1
- Inventors
- 1
- Latest grant
- 20 Jun 1995
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| Year | Granted patents | Published applications |
|---|---|---|
| 1995 | 1 | 0 |
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