Pocket Watch Database
Patent Archive
#13451
Patent Information
Clock Regulate Pendulum Etc
John C. Briggs
August 21, 1855
Patent #13451
Patent Number: | 13451 |
Description: | Clock Regulate Pendulum Etc |
Inventor(s): | John C. Briggs |
Patent Date: | Aug 21, 1855 |
Registration Type: | Patent |
External Research: | https://www.google.c… |
Patent Document: |