Pocket Watch Database
Patent Archive
#1345318
Patent Information
Escape Dbl Roller Lever
Henri Colomb
June 29, 1920
Patent #1345318
| Patent Number: | 1345318 |
| Description: | Escape Dbl Roller Lever |
| Inventor(s): | Henri Colomb |
| Patent Date: | Jun 29, 1920 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
