Pocket Watch Database
Patent Archive
#458490
Patent Information
Clock Calendar
Henry S. Prentiss
August 25, 1891
Patent #458490
| Patent Number: | 458490 |
| Description: | Clock Calendar |
| Inventor(s): | Henry S. Prentiss |
| Patent Date: | Aug 25, 1891 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
