Pocket Watch Database
Patent Archive
#477432
Patent Information
Tool Balance Spring Over Coil
Charles H. Miller
June 21, 1892
Patent #477432
| Patent Number: | 477432 |
| Description: | Tool Balance Spring Over Coil |
| Inventor(s): | Charles H. Miller |
| Patent Date: | Jun 21, 1892 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
