Patent Archive
#22071
Patent Information
Electro Magnetic Fire Alarm Apparatus
Farmer M
November 16, 1858
Patent #22071
| Manufacturer: | |
| Patent Number: | 22071 |
| Category: | |
| Description: | Electro Magnetic Fire Alarm Apparatus |
| Inventor(s): | Farmer M |
| Assignee: | Channing W F |
| Patent Date: | Nov 16, 1858 |
| Registration Type: | Patent |
| External Research: | https://www.google.com/patents... |
| Patent Document: |
