Pocket Watch Database
Patent Archive
#1657617
Patent Information
Clock Wind Mech Electric
Frederick A. Feldkamp
January 31, 1928
Patent #1657617
| Patent Number: | 1657617 |
| Description: | Clock Wind Mech Electric |
| Inventor(s): | Frederick A. Feldkamp |
| Patent Date: | Jan 31, 1928 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
