Pocket Watch Database
Patent Archive
#342481
Patent Information
Clock Circuit Tester
James A. Tilden
May 25, 1886
Patent #342481
| Patent Number: | 342481 |
| Description: | Clock Circuit Tester |
| Inventor(s): | James A. Tilden |
| Patent Date: | May 25, 1886 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
