Wrist watch identification
US4122662A · kind A · utility
2Cited by
0References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 2, 1977 |
| Grant date | Oct 31, 1978 |
| Priority date | — |
| Expiry date | May 2, 1997 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG04B29/02
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
This invention relates to the identification of wrist watches of the type which are mass produced. It comprises stamping a matrix of identifying indicia in the bottom of a concavity underneath but visible through the felloe of the balance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.