| All Patents in class 81/176.3 |
Patents 16 -
23
of 23
      |
| Number | Date | Patentee | Title | Type |
| 626,381 | Jun. 06, 1899 | D.M. Humiston | Combination Tool | bicycle or pocket wrenches |
| 643,520 | Feb. 13, 1900 | C.H. Monroe | Sprocket Wheel Wrench | wrenches |
| 644,033 | Feb. 20, 1900 | F. Schrader | Combined Spanner and Sliding-Jaw Wrench | bicycle or pocket wrenches |
| 738,015 | Sep. 01, 1903 | J.C. Dufresne | Adjustable Spanner Wrench | quick adjust wrenches |
| 1,313,601 | Aug. 19, 1919 | J.H. Just | Valve Grinder | valve grinding tools |
| 1,759,186 | May 20, 1930 | J.G. Collins | Spanner wrench | |
| 2,810,313 | Oct. 22, 1957 | R.W. Hermanson | Open-End Ratchet Wrenches of the Spanner Type | spanner wrenches |
| 3,119,290 | Jan. 28, 1964 | R.G. Ivie | Work Gripping Wrench Socket | socket wrenches |
