Pocket Watch Database
Patent Archive
#3481139
Patent Information
Watch Balance Collet
Marcel Dumont
Gabriel Fahndrick
December 2, 1969
Patent #3481139
| Patent Number: | 3481139 |
| Description: | Watch Balance Collet |
| Inventor(s): |
Marcel Dumont Gabriel Fahndrick |
| Patent Date: | Dec 2, 1969 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
