Pocket Watch Database
Patent Archive
#308521
Patent Information
Clock Electro Mechanical
Chester H. Pond
November 25, 1884
Patent #308521
| Patent Number: | 308521 |
| Description: | Clock Electro Mechanical |
| Inventor(s): | Chester H. Pond |
| Patent Date: | Nov 25, 1884 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
