Pocket Watch Database
Patent Archive
#278572
Patent Information
Clock Maintain Power For Spring
Francis T. Marchand
May 29, 1883
Patent #278572
| Patent Number: | 278572 |
| Description: | Clock Maintain Power For Spring |
| Inventor(s): | Francis T. Marchand |
| Patent Date: | May 29, 1883 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
