Pocket Watch Database
Patent Archive
#2308202
Patent Information
Watch Time Apparatus
Ernst Norrman
January 12, 1943
Patent #2308202
| Patent Number: | 2308202 |
| Description: | Watch Time Apparatus |
| Inventor(s): | Ernst Norrman |
| Patent Date: | Jan 12, 1943 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
