Pocket Watch Database
Patent Archive
#448560
Patent Information
Recorder Work Man
Francis E. Tyng
March 17, 1891
Patent #448560
| Patent Number: | 448560 |
| Description: | Recorder Work Man |
| Inventor(s): | Francis E. Tyng |
| Patent Date: | Mar 17, 1891 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
