Magnification lens for date dial in a wristwatch
UST103802I4 · kind I4 · defensive publication
1Cited by
0References
4Claims
0Family size
Inventor
Key dates
| Filing date | Sep 27, 1982 |
| Grant date | Jan 3, 1984 |
| Priority date | — |
| Expiry date | Sep 27, 2002 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.