Pocket Watch Database
Patent Archive
#388625
Patent Information
Watch Cannon Pinion
Leonard C. Briggs
August 28, 1888
Patent #388625
| Patent Number: | 388625 |
| Description: | Watch Cannon Pinion |
| Inventor(s): | Leonard C. Briggs |
| Patent Date: | Aug 28, 1888 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
