| Patents for Chicago Pneumatic Tool Co. |
Patents 1 -
15
of 16
      |
| Number | Date | Patentee | Title | Type |
| 866,922 | Sep. 24, 1907 | W.O. Duntley | Engine | pneumatic tools |
| 871,086 | Nov. 12, 1907 | W.O. Duntley, G.H. Hayes | Engine | pneumatic tools |
| 904,851 | Nov. 24, 1908 | W.O. Duntley, H.J. Kimman | Controller for electric drills | handheld power drills |
| 910,798 | Jan. 26, 1909 | W.O. Duntley | Electric hoist | hoists, winches, come-alongs |
| 912,655 | Feb. 16, 1909 | W.O. Duntley | Pneumatic-tool handle | pneumatic tools |
| 991,431 | May 02, 1911 | W.O. Duntley | Controller for electric drills | handheld power drills |
| 993,352 | May 30, 1911 | W.O. Duntley | Electric drill | handheld power drills |
| 1,010,975 | Dec. 05, 1911 | W.C. Buege, G. Stroner | Tool holder | handheld power drills |
| 1,053,940 | Feb. 18, 1913 | J. Burke | Universal motor | universal motors |
| 1,062,883 | May 27, 1913 | J. Burke | Electric riveting-machine | riveting machines |
| 1,109,325 | Sep. 01, 1914 | W.O. Duntley | Electric drill | handheld power drills |
| 1,117,140 | Nov. 10, 1914 | J.A. Osborn | Portable electrically-driven tool | handheld power drills |
| 1,224,272 | May 01, 1917 | W.H. Callan | Unloader for Air Compressors | air compressors |
| 1,496,067 | Jun. 03, 1924 | E. Penberthy | Tool Holder and Retainer | drilling and boring tool holders |
| 1,722,816 | Jul. 30, 1929 | L.F. Meunier | Cable connection for portable tools | handheld power tools |
