Pocket Watch Database
Patent Archive
#1431752
Patent Information
Clock Coin Operate
John R. Pennington
William D. Pennington
October 10, 1922
Patent #1431752
| Patent Number: | 1431752 |
| Description: | Clock Coin Operate |
| Inventor(s): |
John R. Pennington William D. Pennington |
| Patent Date: | Oct 10, 1922 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
