Pocket Watch Database
Patent Archive
#D121390
Patent Information
Machine Watch Cleaner
Roy B. Keehnel
July 9, 1940
Patent #D121390
| Patent Number: | D121390 |
| Description: | Machine Watch Cleaner |
| Inventor(s): | Roy B. Keehnel |
| Patent Date: | Jul 9, 1940 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
