| Patents for Chicago Pneumatic Tool Co. |
Patents 1 -
10
of 16
      |
| Picture | Number | Date | Patentee | Title |
 | 866,922 | Sep. 24, 1907 | W.O. Duntley | Engine |
 | 871,086 | Nov. 12, 1907 | W.O. Duntley, G.H. Hayes | Engine |
| | 904,851 | Nov. 24, 1908 | W.O. Duntley, H.J. Kimman | Controller for electric drills |
 | 910,798 | Jan. 26, 1909 | W.O. Duntley | Electric hoist |
 | 912,655 | Feb. 16, 1909 | W.O. Duntley | Pneumatic-tool handle |
| | 991,431 | May 02, 1911 | W.O. Duntley | Controller for electric drills |
| | 993,352 | May 30, 1911 | W.O. Duntley | Electric drill |
| | 1,010,975 | Dec. 05, 1911 | W.C. Buege, G. Stroner | Tool holder |
 | 1,053,940 | Feb. 18, 1913 | J. Burke | Universal motor |
 | 1,062,883 | May 27, 1913 | J. Burke | Electric riveting-machine |
