| All Patents in class 173/170 |
Patents 16 -
30
of 43
      |
| Number | Date | Patentee | Title | Type |
| 1,099,392 | Jun. 09, 1914 | R.A. Norling | Pneumatic-turbine drill | pneumatic tools |
| 1,245,860 | Nov. 06, 1917 | S.D. Black, A.G. Decker | Electrically-driven tool | handheld power tools |
| 1,502,169 | Jul. 22, 1924 | C.B. Bennett | Electric tool | handheld power drills |
| 1,539,068 | May 26, 1925 | B.W. Brockett | Motor hand tool | handheld power drills |
| 1,539,069 | May 26, 1925 | B.W. Brockett | Handle for motor hand tools | handheld power drills |
| 1,548,020 | Aug. 04, 1925 | S.D. Black, A.G. Decker | Reversing means for electric tools | handheld power tools |
| 1,702,742 | Feb. 19, 1929 | W. Moretti | Electric tool | handheld power drills |
| 1,754,222 | Apr. 15, 1930 | E.L. Connell | Electric drill | |
| 1,850,191 | Mar. 22, 1932 | G.R. Wilcox | Electric drill | handheld power drills |
| 2,234,647 | Mar. 11, 1941 | O.A. Kehle | Fluid motor | pneumatic tools |
| 2,271,933 | Feb. 03, 1942 | G.D. Behlen | Power hammer | handheld power tools |
| 2,326,854 | Aug. 17, 1943 | J.E. Hassler | Method and means for sawing wood | other wood sawing machines |
| 2,433,007 | Dec. 23, 1947 | C.S. Weyandt | Internal-combustion percussion tool | gas and gasoline engines |
| 2,468,469 | Apr. 26, 1949 | G.E. Smith | Handle structure for portable tools | handheld power drills |
| 2,561,577 | Jul. 24, 1951 | R.G. Knudsen | Pneumatic Impact Pullers and the Like | |
