Pocket Watch Database
Patent Archive
#2425017
Patent Information
Attach Of Hair Spring To Arbor
Ralph Roth Wentz
August 5, 1947
Patent #2425017
| Patent Number: | 2425017 |
| Description: | Attach Of Hair Spring To Arbor |
| Inventor(s): | Ralph Roth Wentz |
| Patent Date: | Aug 5, 1947 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
