Pocket Watch Database
Patent Archive
#508461
Patent Information
Recorder Work Man
Mahlon M. Zellers
November 14, 1893
Patent #508461
| Patent Number: | 508461 |
| Description: | Recorder Work Man |
| Inventor(s): | Mahlon M. Zellers |
| Patent Date: | Nov 14, 1893 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
