Pocket Watch Database
Patent Archive
#881400
Patent Information
Center Pinion Watch
W. E. Porter
March 10, 1908
Patent #881400
| Patent Number: | 881400 |
| Description: | Center Pinion Watch |
| Inventor(s): | W. E. Porter |
| Patent Date: | Mar 10, 1908 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
