US Patent: 577,770
|
| Wrench
|
|
Patentee:
|
|
| George Washington Martin (exact or similar names) - Henderson, KY |
| Manufacturer: |
| Not known to have been produced |
|
|
Patent Dates:
|
| Applied: |
Jun. 01, 1896 |
| Granted: |
Feb. 23, 1897 |
|
Patent Pictures:
|
|
George Washington Martin patent February 23, 1897 |
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward
Stan Schulz
|
|
Description: |
| Although described as an improvement to patent no. 489,822 issued January 10,1893, the only thing the two patents have in common is the toothed jaw faces.
In this patent the major features are the shape and action of the movable jaw, the cone-shaped adjusting nut for the movable jaw, and the spring-loaded jaw surface in the fixed jaw. |
|
