Pocket Watch Database
Patent Archive
#739245
Patent Information
Clock Gravity Escape
William Willmann
September 15, 1903
Patent #739245
| Patent Number: | 739245 |
| Description: | Clock Gravity Escape |
| Inventor(s): | William Willmann |
| Patent Date: | Sep 15, 1903 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
