Pocket Watch Database
Patent Archive
#2715812
Patent Information
Clock Power Maintain Spring Device
Lester M. Grether
Peter Olson
August 23, 1955
Patent #2715812
| Patent Number: | 2715812 |
| Description: | Clock Power Maintain Spring Device |
| Inventor(s): |
Lester M. Grether Peter Olson |
| Assignee: | George W Borg Corp |
| Patent Date: | Aug 23, 1955 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
