Pocket Watch Database
Patent Archive
#859756
Patent Information
Timer Gas Cock
Elmer Oscar Froid
July 9, 1907
Patent #859756
| Patent Number: | 859756 |
| Description: | Timer Gas Cock |
| Inventor(s): | Elmer Oscar Froid |
| Patent Date: | Jul 9, 1907 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
