Pocket Watch Database
Patent Archive
#1221986
Patent Information
Equalizer For Main Spring Drive
Ferdinand Gundorph
April 10, 1917
Patent #1221986
| Patent Number: | 1221986 |
| Description: | Equalizer For Main Spring Drive |
| Inventor(s): | Ferdinand Gundorph |
| Patent Date: | Apr 10, 1917 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
