| All Patents in class 173/137 |
Patents 1 -
7
of 7
      |
| Number | Date | Patentee | Title | Type |
| 271,781 | Feb. 06, 1883 | B. Brazelle | Steam-engine | pneumatic tools |
| 665,033 | Jan. 01, 1901 | C.B. Richards | Pneumatic Tool | pneumatic tools |
| 925,491 | Jun. 22, 1909 | G.S. Lowe | Machine for severing stay-bolts | boiler repair tools |
| 962,717 | Jun. 28, 1910 | V.J. O'Brien | Valve for Hammer Drills | pneumatic tools |
| 1,178,892 | Apr. 11, 1916 | D.S. Waugh | Rock Drill | |
| 2,260,624 | Oct. 28, 1941 | A.S. Johann | Sheet Metal Shaper | sheet metal |
| 2,607,559 | Aug. 19, 1952 | E.H. Forss | Valve for pneumatic riveting hammers | impact riveters |
