Pocket Watch Database
Patent Archive
#1802056
Patent Information
Clock Electric
Martin Hermann Kaefer
April 21, 1931
Patent #1802056
Patent Number: | 1802056 |
Description: | Clock Electric |
Inventor(s): | Martin Hermann Kaefer |
Assignee: | Western Clock Co |
Patent Date: | Apr 21, 1931 |
Registration Type: | Patent |
External Research: | https://www.google.c… |
Patent Document: |