Pocket Watch Database
Patent Archive
#2237673
Patent Information
Clock Electric
Richard P. Landgraf
April 8, 1941
Patent #2237673
| Patent Number: | 2237673 |
| Description: | Clock Electric |
| Inventor(s): | Richard P. Landgraf |
| Patent Date: | Apr 8, 1941 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
