Pocket Watch Database
Patent Archive
#1765205
Patent Information
Recorder Watch Man Electric
Samuel B. Chapman
June 17, 1930
Patent #1765205
| Patent Number: | 1765205 |
| Description: | Recorder Watch Man Electric |
| Inventor(s): | Samuel B. Chapman |
| Patent Date: | Jun 17, 1930 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
