Pocket Watch Database
Patent Archive
#2978862
Patent Information
Watch Electric
Helmut Epperlein
April 11, 1961
Patent #2978862
| Manufacturer: | Hamilton |
| Patent Number: | 2978862 |
| Description: | Watch Electric |
| Inventor(s): | Helmut Epperlein |
| Assignee: | Hamilton Watch Co |
| Patent Date: | Apr 11, 1961 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
