Pocket Watch Database
Patent Archive
#664734
Patent Information
Balance Escape
Laurence Erikson
December 25, 1900
Patent #664734
| Patent Number: | 664734 |
| Description: | Balance Escape |
| Inventor(s): | Laurence Erikson |
| Patent Date: | Dec 25, 1900 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
