Pocket Watch Database
Patent Archive
#876293
Patent Information
Time Circuit
Frank W. Brock
January 7, 1908
Patent #876293
| Patent Number: | 876293 |
| Description: | Time Circuit |
| Inventor(s): | Frank W. Brock |
| Patent Date: | Jan 7, 1908 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
