Pocket Watch Database
Patent Archive
#2937222
Patent Information
Primary Dry Cell
Walter R. Kempf
May 17, 1960
Patent #2937222
| Manufacturer: | Hamilton |
| Patent Number: | 2937222 |
| Description: | Primary Dry Cell |
| Inventor(s): | Walter R. Kempf |
| Assignee: | Hamilton Watch Co |
| Patent Date: | May 17, 1960 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
