Pocket Watch Database
Patent Archive
#946993
Patent Information
Timepiece Spring
Bolton Werner Van
January 18, 1910
Patent #946993
| Patent Number: | 946993 |
| Description: | Timepiece Spring |
| Inventor(s): | Bolton Werner Van |
| Assignee: | Siemens & Halske Aktiengesells |
| Patent Date: | Jan 18, 1910 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
