Pocket Watch Database
Patent Archive
#360725
Patent Information
Clock Calendar
Henry S. Prentiss
April 5, 1887
Patent #360725
| Patent Number: | 360725 |
| Description: | Clock Calendar |
| Inventor(s): | Henry S. Prentiss |
| Patent Date: | Apr 5, 1887 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
