Pocket Watch Database
Patent Archive
#413340
Patent Information
Clock Electric Regulator For Pendulum
James H. Gerry
October 22, 1889
Patent #413340
| Patent Number: | 413340 |
| Description: | Clock Electric Regulator For Pendulum |
| Inventor(s): | James H. Gerry |
| Patent Date: | Oct 22, 1889 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
