Pocket Watch Database
Patent Archive
#3129554
Patent Information
Electric Timekeeper
Hideaki Yasukawa
April 21, 1964
Patent #3129554
| Patent Number: | 3129554 |
| Description: | Electric Timekeeper |
| Inventor(s): | Hideaki Yasukawa |
| Assignee: | Kabushiki Kaisha Suwa Seikosha |
| Patent Date: | Apr 21, 1964 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
