| All Patents in class 173/170 |
Patents 1 -
15
of 43
      |
| Number | Date | Patentee | Title | Type |
| 271,781 | Feb. 06, 1883 | B. Brazelle | Steam-engine | pneumatic tools |
| 284,173 | Sep. 04, 1883 | B. Brazelle | Direct-acting engine | pneumatic tools |
| 433,150 | Jul. 29, 1890 | W.F. Schmidt | Throttle Valve for Direct Acting Engines | steam engines |
| 494,461 | Mar. 28, 1893 | F.H. Cathcart | Power-Driven Tool | |
| 649,754 | May 15, 1900 | C.B. Richards | Pneumatic Tool | pneumatic tools |
| 735,589 | Aug. 04, 1903 | C.B. Richards | Impact Tool | pneumatic tools |
| 809,394 | Jan. 09, 1906 | A. Pedersen | Electrically-operated portable drill | handheld power tools |
| 836,778 | Nov. 27, 1906 | A.J. Patch | Pneumatic Hammer | pneumatic tools |
| 912,655 | Feb. 16, 1909 | W.O. Duntley | Pneumatic-tool handle | pneumatic tools |
| 993,352 | May 30, 1911 | W.O. Duntley | Electric drill | handheld power drills |
| 1,004,437 | Sep. 26, 1911 | A. Kimble | Alternating-current motor | electric motors |
| 1,052,823 | Feb. 11, 1913 | A.M. Irvine | Power Actuated Hand Tool | riveting tools |
| 1,053,744 | Feb. 18, 1913 | J.H. Philips | Spring Hammer | riveting tools |
| 1,062,799 | May 27, 1913 | G.H. Rowe | Rock drill | miner |
| 1,090,603 | Mar. 17, 1914 | E.I. Dodds | Portable pneumatic tool | pneumatic tools |
