Pocket Watch Database
Patent Archive
#444433
Patent Information
Clock Independent Electric
Emil G. Hammer
January 13, 1891
Patent #444433
| Patent Number: | 444433 |
| Description: | Clock Independent Electric |
| Inventor(s): | Emil G. Hammer |
| Patent Date: | Jan 13, 1891 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
