Pocket Watch Database
Patent Archive
#441443
Patent Information
Clock Calendar
Henry S. Prentiss
November 25, 1890
Patent #441443
| Patent Number: | 441443 |
| Description: | Clock Calendar |
| Inventor(s): | Henry S. Prentiss |
| Patent Date: | Nov 25, 1890 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
