| All Patents in class 310/43 |
Patents 1 -
9
of 9
      |
| Number | Date | Patentee | Title | Type |
| 942,699 | Dec. 07, 1909 | L.H. Baekeland | Method of making insoluble products of phenol and formaldehyde | |
| 1,284,524 | Nov. 12, 1918 | C.E. Wilson, W.H. Kempton, A.J. Bastian | Molded commutator-cylinder | motor commutators |
| 1,360,166 | Nov. 23, 1920 | C.C. Zenk | Commutator | motor commutators |
| 1,852,829 | Apr. 05, 1932 | A.F. Welch | Dynamo electric machine | induction motors |
| 2,233,946 | Mar. 04, 1941 | K.A. Harmon | Magneto | ignition systems |
| 2,562,283 | Jul. 31, 1951 | M.B. Sawyer, Sr. | Metal cast electric motor | induction motors |
| 3,121,813 | Feb. 18, 1964 | L.C. Pratt, J.G. Raymond | Electric power unit | handheld power drills |
| 3,344,291 | Sep. 26, 1967 | L.C. Pratt | Double insulated hand tool | handheld power tools |
| 3,695,344 | Oct. 03, 1972 | A. Schnizler, Jr. | Heat Insulation Means for Power Tools | handheld power jigsaws |
