Pocket Watch Database
Patent Archive
#1398776
Patent Information
Timepiece Escape
Isidor Greenwald
November 29, 1921
Patent #1398776
| Patent Number: | 1398776 |
| Description: | Timepiece Escape |
| Inventor(s): | Isidor Greenwald |
| Patent Date: | Nov 29, 1921 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
