US Patent: 499,919
|
| Adjustable Wrench
|
|
Patentees:
|
| Willard H. Griffin (exact or similar names) - Henniker, NH |
| Elmer P. Nichols (exact or similar names) - Henniker, NH |
| Manufacturer: |
| Not known to have been produced |
|
|
Patent Dates:
|
| Applied: |
Mar. 17, 1893 |
| Granted: |
Jun. 20, 1893 |
|
Patent Pictures:
|
|
William H. Griffin and Elmer P. Nichols patent June 20, 1893 |
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward
Stan Schulz
|
|
Description: |
| Adjustable brace socket wrench. The jaws move in slots in the frame, and are spread with a coil spring.
Parallel patent 499,920 has a more robust appearance. |
|
