US Patent: 640,005
|
| Wrench
|
| USPTO Classifications: |
| 81/96 |
| Manufacturer: |
| Not known to have been produced |
|
|
Patent Dates:
|
| Applied: |
May 27, 1899 |
| Granted: |
Dec. 26, 1899 |
|
Patent Pictures:
|
|
Harry W. Libby and Charles R. Swett patent Dec. 26, 1899 |
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward
Stan Schulz
|
|
Description: |
| Roller jaw pipe wrench; the teeth which engage with the rack on the main shank are also the gripping teeth of the movable jaw. Compare the details to the Browning (pat. nos. 171,982 and 594,775) or CRAFT (Geo. Heckling pat. no. 870,781) roller jaw pipe wrenches. |
|
