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| All Patents in class 173/137 | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 271,781 | Feb. 06, 1883 | B. Brazelle | Steam-engine | |
| 665,033 | Jan. 01, 1901 | C.B. Richards | Pneumatic Tool | ||
 | 925,491 | Jun. 22, 1909 | G.S. Lowe | Machine for severing stay-bolts | |
 | 962,717 | Jun. 28, 1910 | V.J. O'Brien | Valve for Hammer Drills | |
| 1,178,892 | Apr. 11, 1916 | D.S. Waugh | Rock Drill | ||
 | 2,260,624 | Oct. 28, 1941 | A.S. Johann | Sheet Metal Shaper | |
 | 2,607,559 | Aug. 19, 1952 | E.H. Forss | Valve for pneumatic riveting hammers | |