Pocket Watch Database
Patent Archive
#328308
Patent Information
Method Make Combine Spring Arbor & Collet
George E. Hart
October 13, 1885
Patent #328308
| Manufacturer: | Waterbury Watch Co. |
| Patent Number: | 328308 |
| Description: | Method Make Combine Spring Arbor & Collet |
| Inventor(s): | George E. Hart |
| Assignee: | Waterbury Watch Co |
| Patent Date: | Oct 13, 1885 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
