Pocket Watch Database
Patent Archive
#1742457
Patent Information
Spring Bar Assembly
Edward J. Willman
January 7, 1930
Patent #1742457
| Manufacturer: | Illinois Watch Case Co |
| Patent Number: | 1742457 |
| Description: | Spring Bar Assembly |
| Inventor(s): | Edward J. Willman |
| Assignee: | Illinois Watch Case Co |
| Patent Date: | Jan 7, 1930 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
