Pocket Watch Database
Patent Archive
#504432
Patent Information
Clock Calendar
Hulda Grunberg
September 5, 1893
Patent #504432
Patent Number: | 504432 |
Description: | Clock Calendar |
Inventor(s): | Hulda Grunberg |
Patent Date: | Sep 5, 1893 |
Registration Type: | Patent |
External Research: | https://www.google.c… |
Patent Document: |