Pocket Watch Database
Patent Archive
#846515
Patent Information
Clock Slave Electric
Ruben W. Smedberg
March 12, 1907
Patent #846515
| Patent Number: | 846515 |
| Description: | Clock Slave Electric |
| Inventor(s): | Ruben W. Smedberg |
| Patent Date: | Mar 12, 1907 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
