Pocket Watch Database
Patent Archive
#1231350
Patent Information
Recorder Watch Man
Isaac A. Herrmann
June 26, 1917
Patent #1231350
| Patent Number: | 1231350 |
| Description: | Recorder Watch Man |
| Inventor(s): | Isaac A. Herrmann |
| Patent Date: | Jun 26, 1917 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
