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| All Patents in class 81/57.4 | |||||
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| Number | Date | Patentee | Title | Type | |
| 285,484 | Sep. 25, 1883 | M.C. Henley | Screw-driver | screwdriver mechanisms | |
| 496,692 | May 02, 1893 | C.R. Mayne | Combined Wagon Jack and Wrench | axle nut wrench combination tools | |
| 728,458 | May 19, 1903 | B.M. Hanson | Fluid Pressure Operated Chuck | metal lathe chucks | |
| 1,540,749 | Jun. 09, 1925 | A.A. Beach | Screw Driving Device | screwdriver mechanisms | |
| 2,042,257 | May 26, 1936 | C.W. Hopkins, R.E. Harrison | Machine Tool | grinding machines | |