Pocket Watch Database
Patent Archive
#3517503
Patent Information
Watch Hair Spring Device
Frederic H. Jr Smythe
Edward Kaulins
June 30, 1970
Patent #3517503
| Patent Number: | 3517503 |
| Description: | Watch Hair Spring Device |
| Inventor(s): |
Frederic H. Jr Smythe Edward Kaulins |
| Assignee: | Timex Corp |
| Patent Date: | Jun 30, 1970 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
