Pocket Watch Database
Patent Archive
#2077115
Patent Information
Chronological Instrument
Max Knobel
April 13, 1937
Patent #2077115
| Patent Number: | 2077115 |
| Description: | Chronological Instrument |
| Inventor(s): | Max Knobel |
| Patent Date: | Apr 13, 1937 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
