Pocket Watch Database
Patent Archive
#451042
Patent Information
Timepiece Calendar For
Duncan E. Grant
April 28, 1891
Patent #451042
| Patent Number: | 451042 |
| Description: | Timepiece Calendar For |
| Inventor(s): | Duncan E. Grant |
| Patent Date: | Apr 28, 1891 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
