Pocket Watch Database
Patent Archive
#2212317
Patent Information
Machine Watch Clean
Irving Friedman
August 20, 1940
Patent #2212317
| Patent Number: | 2212317 |
| Description: | Machine Watch Clean |
| Inventor(s): | Irving Friedman |
| Assignee: | Efco Mfg Co |
| Patent Date: | Aug 20, 1940 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
