Pocket Watch Database
Patent Archive
#884852
Patent Information
Watch Balance Wheel
John Poruba
April 14, 1908
Patent #884852
| Patent Number: | 884852 |
| Description: | Watch Balance Wheel |
| Inventor(s): | John Poruba |
| Patent Date: | Apr 14, 1908 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
