US Patent: 412,373
|
| Nut Wrench
|
|
Patentee:
|
|
| Peter Richard Erickson (exact or similar names) - Ishpeming, MI |
| Manufacturer: |
| Not known to have been produced |
|
|
Patent Dates:
|
| Applied: |
Jan. 04, 1889 |
| Granted: |
Oct. 08, 1889 |
|
Patent Pictures:
|
|
Peter Richard Erickson patent October 8, 1889 |
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward
Stan Schulz
|
|
Description: |
| A sliding jaw open end wrench, with two clamping screws to set and hold the adjustment. The screw in the length of the handle exerts clamping pressure on the sliding jaw through a block with wedge-shaped teeth. The side screw sets the width of the opening.
Parallel Canadian patent CA-33,032 was granted Dec. 4, 1889. |
|
