Pocket Watch Database
Patent Archive
#421623
Patent Information
Time Stamp
Charles H. Shaw
February 18, 1890
Patent #421623
Patent Number: | 421623 |
Description: | Time Stamp |
Inventor(s): | Charles H. Shaw |
Patent Date: | Feb 18, 1890 |
Registration Type: | Patent |
External Research: | https://www.google.c… |
Patent Document: |