Pocket Watch Database
Patent Archive
#2240305
Patent Information
Metronome
Winfield R. Koch
April 29, 1941
Patent #2240305
| Patent Number: | 2240305 |
| Description: | Metronome |
| Inventor(s): | Winfield R. Koch |
| Assignee: | Radio Corp Of America |
| Patent Date: | Apr 29, 1941 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
