Pocket Watch Database
Patent Archive
#986447
Patent Information
Clock Remove Main Spring
Vincent E. Duncanson
March 14, 1911
Patent #986447
| Patent Number: | 986447 |
| Description: | Clock Remove Main Spring |
| Inventor(s): | Vincent E. Duncanson |
| Patent Date: | Mar 14, 1911 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
