Pocket Watch Database
Patent Archive
#466712
Patent Information
Clock Memorandum
John Davidson
January 5, 1892
Patent #466712
| Patent Number: | 466712 |
| Description: | Clock Memorandum |
| Inventor(s): | John Davidson |
| Patent Date: | Jan 5, 1892 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
