Pocket Watch Database
Patent Archive
#2227362
Patent Information
Clock Calendar
Elmer Parr
Frank Parr
December 31, 1940
Patent #2227362
| Patent Number: | 2227362 |
| Description: | Clock Calendar |
| Inventor(s): |
Elmer Parr Frank Parr |
| Patent Date: | Dec 31, 1940 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
