Pocket Watch Database
Patent Archive
#1540855
Patent Information
Clock Device Drive Monumental
Armand Mayer
June 9, 1925
Patent #1540855
Patent Number: | 1540855 |
Description: | Clock Device Drive Monumental |
Inventor(s): | Armand Mayer |
Patent Date: | Jun 9, 1925 |
Registration Type: | Patent |
External Research: | https://www.google.c… |
Patent Document: |