Pocket Watch Database
Patent Archive
#474789
Patent Information
Watch Regulator Indicator
William A. Allen
May 10, 1892
Patent #474789
| Patent Number: | 474789 |
| Category: | Regulators |
| Description: | Watch Regulator Indicator |
| Inventor(s): | William A. Allen |
| Patent Date: | May 10, 1892 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
