Pocket Watch Database
Patent Archive
#455041
Patent Information
Clock Electric Light
Hefner-alteneck Friedrich Von
June 30, 1891
Patent #455041
Patent Number: | 455041 |
Description: | Clock Electric Light |
Inventor(s): | Hefner-alteneck Friedrich Von |
Patent Date: | Jun 30, 1891 |
Registration Type: | Patent |
External Research: | https://www.google.c… |
Patent Document: |