Telephone set
UST955001I4 · kind I4 · defensive publication
13Cited by
0References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 3, 1975 |
| Grant date | Feb 1, 1977 |
| Priority date | — |
| Expiry date | Dec 3, 1995 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.