Pocket Watch Database
Patent Archive
#2170743
Patent Information
Clock Driven Indicator
Fred Alderman
August 22, 1939
Patent #2170743
| Patent Number: | 2170743 |
| Description: | Clock Driven Indicator |
| Inventor(s): | Fred Alderman |
| Patent Date: | Aug 22, 1939 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
