US Patent: 426,956
|
Wrench Improved Pipe Wrench
|
Patentee:
|
|
Daniel R. Porter (exact or similar names) - Chelsea, MA |
Manufacturer: |
Not known to have been produced |
|
Patent Dates:
|
Applied: |
Dec. 21, 1889 |
Granted: |
Apr. 29, 1890 |
Patent Pictures:
|
|
Daniel R. Porter patent April 29, 1890 |
USPTO (New site tip) Google Patents
Report data errors or omissions to steward
Stan Schulz
|
Description: |
The focus of the patent is the guide for the shank of the movable jaw, and the ears on the "shoe."
Corresponding Canadian patent CA-35,548 was granted Dec. 2, 1890.
Improved by Daniel R. Porter's April 21, 1891 patent no. 450,681. |
|