Pocket Watch Database
Patent Archive
#639019
Patent Information
Clock Electric
Joseph Butcher
December 12, 1899
Patent #639019
Patent Number: | 639019 |
Description: | Clock Electric |
Inventor(s): | Joseph Butcher |
Patent Date: | Dec 12, 1899 |
Registration Type: | Patent |
External Research: | https://www.google.c… |
Patent Document: |