Pocket Watch Database
Patent Archive
#1522884
Patent Information
Recorder Watch Man Portable
Otto E. Hansburg
January 13, 1925
Patent #1522884
| Patent Number: | 1522884 |
| Description: | Recorder Watch Man Portable |
| Inventor(s): | Otto E. Hansburg |
| Patent Date: | Jan 13, 1925 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
