Pocket Watch Database
Patent Archive
#2654989
Patent Information
Timekeeping Magnetic Escape Rotor Unit
Malcolm P. Nichols
October 13, 1953
Patent #2654989
| Patent Number: | 2654989 |
| Description: | Timekeeping Magnetic Escape Rotor Unit |
| Inventor(s): | Malcolm P. Nichols |
| Assignee: | E Ingraham Co |
| Patent Date: | Oct 13, 1953 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
