Pocket Watch Database
Patent Archive
#1812581
Patent Information
Timepiece Wind Mech
Marcel Bloch
June 30, 1931
Patent #1812581
| Patent Number: | 1812581 |
| Description: | Timepiece Wind Mech |
| Inventor(s): | Marcel Bloch |
| Patent Date: | Jun 30, 1931 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
