Pocket Watch Database
Patent Archive
#3538704
Patent Information
Watch Balance Wheel
Hiroshi Kawanaka
Toyoji Kanazawa
November 10, 1970
Patent #3538704
| Patent Number: | 3538704 |
| Description: | Watch Balance Wheel |
| Inventor(s): |
Hiroshi Kawanaka Toyoji Kanazawa |
| Assignee: | Citizen Watch Co Ltd |
| Patent Date: | Nov 10, 1970 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
