Pocket Watch Database
Patent Archive
#1335053
Patent Information
Clock Pneumatic Secondary
Charles B. Hale
March 30, 1920
Patent #1335053
| Patent Number: | 1335053 |
| Description: | Clock Pneumatic Secondary |
| Inventor(s): | Charles B. Hale |
| Assignee: | Time Systems Co |
| Patent Date: | Mar 30, 1920 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
