Pocket Watch Database
Patent Archive
#3469389
Patent Information
Watch Tuning Fork Electric Assembly
Akira Nakai
Kei Nakagawa
September 30, 1969
Patent #3469389
| Patent Number: | 3469389 |
| Description: | Watch Tuning Fork Electric Assembly |
| Inventor(s): |
Akira Nakai Kei Nakagawa |
| Assignee: | Citixen Tokei Kabushiki Kaisha |
| Patent Date: | Sep 30, 1969 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
