Pocket Watch Database
Patent Archive
#422654
Patent Information
Clock Program
Nathan H. Sure
March 4, 1890
Patent #422654
Patent Number: | 422654 |
Description: | Clock Program |
Inventor(s): | Nathan H. Sure |
Patent Date: | Mar 4, 1890 |
Registration Type: | Patent |
External Research: | https://www.google.c… |
Patent Document: |