Pocket Watch Database
Patent Archive
#1879441
Patent Information
Machine Watch Cleaner
Raymond R. Olson
September 27, 1932
Patent #1879441
| Patent Number: | 1879441 |
| Description: | Machine Watch Cleaner |
| Inventor(s): | Raymond R. Olson |
| Patent Date: | Sep 27, 1932 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
