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: |