Pocket Watch Database
Patent Archive
#759914
Patent Information
Compensate Balance
John H. Purdy
May 17, 1904
Patent #759914
| Patent Number: | 759914 |
| Description: | Compensate Balance |
| Inventor(s): | John H. Purdy |
| Patent Date: | May 17, 1904 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
