Pocket Watch Database
Patent Archive
#2775092
Patent Information
Calendar Mechanical
Frank A. Howard
December 25, 1956
Patent #2775092
| Patent Number: | 2775092 |
| Description: | Calendar Mechanical |
| Inventor(s): | Frank A. Howard |
| Patent Date: | Dec 25, 1956 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
