Pocket Watch Database
Patent Archive
#782387
Patent Information
Timer Electric Circuit
William H. Gerhard
February 14, 1905
Patent #782387
| Patent Number: | 782387 |
| Description: | Timer Electric Circuit |
| Inventor(s): | William H. Gerhard |
| Patent Date: | Feb 14, 1905 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
