Pocket Watch Database
Patent Archive
#379293
Patent Information
Calendar Dial
Carl Fredck Sinn
March 13, 1888
Patent #379293
| Patent Number: | 379293 |
| Description: | Calendar Dial |
| Inventor(s): | Carl Fredck Sinn |
| Patent Date: | Mar 13, 1888 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
