Pocket Watch Database
Patent Archive
#280463
Patent Information
Clock Gravity Escape
James H. Gerry
July 3, 1883
Patent #280463
| Patent Number: | 280463 |
| Description: | Clock Gravity Escape |
| Inventor(s): | James H. Gerry |
| Patent Date: | Jul 3, 1883 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
