Pocket Watch Database
Patent Archive
#504427
Patent Information
Lock Time
Ira G. Blake
September 5, 1893
Patent #504427
| Patent Number: | 504427 |
| Description: | Lock Time |
| Inventor(s): | Ira G. Blake |
| Patent Date: | Sep 5, 1893 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
