Pocket Watch Database
Patent Archive
#423174
Patent Information
Watch Case Spring
Philip Muhr
March 11, 1890
Patent #423174
| Manufacturer: | H Muhrs Sons |
| Patent Number: | 423174 |
| Description: | Watch Case Spring |
| Inventor(s): | Philip Muhr |
| Patent Date: | Mar 11, 1890 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
