Pocket Watch Database
Patent Archive
#1633351
Patent Information
Watch Dust Guard
Irving Sonnenthal
June 21, 1927
Patent #1633351
| Patent Number: | 1633351 |
| Description: | Watch Dust Guard |
| Inventor(s): | Irving Sonnenthal |
| Patent Date: | Jun 21, 1927 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
