| Patents for Independent Pneumatic Tool Co. |
Patents 1 -
15
of 27
      |
| Number | Date | Patentee | Title | Type |
| 1,053,940 | Feb. 18, 1913 | J. Burke | Universal motor | universal motors |
| 1,099,392 | Jun. 09, 1914 | R.A. Norling | Pneumatic-turbine drill | pneumatic tools |
| 1,105,669 | Aug. 04, 1914 | R.A. Norling, A. Levedahl | Rivet-set retainer | pneumatic tools |
| 1,303,367 | May 13, 1919 | A. Levedahl | Hose-clamp | |
| 1,363,329 | Dec. 28, 1920 | A. Levedahl | Hose-clamp | |
| 1,391,177 | Sep. 20, 1921 | G.H. Du Sell | Chuck | |
| 1,529,910 | Mar. 17, 1925 | R.A. Norling | Grip-handle switch for electric drills | handheld power drills |
| 1,530,505 | Mar. 24, 1925 | A. Levedahl | Stuffing box | |
| 1,559,631 | Nov. 03, 1925 | A. Levedahl | Pneumatic tool | |
| 1,580,617 | Apr. 13, 1926 | A. Levedahl | Rivet-set retainer | |
| 1,591,539 | Jul. 06, 1926 | A. Levedahl | Crank-case venting means for pneumatic tools | |
| 1,591,540 | Jul. 06, 1926 | R.A. Norling, A. Levedahl | Crank-case venting means for pneumatic tools | |
| 1,632,671 | Jun. 14, 1927 | R.A. Norling | Reversing mechanism for electric drills | handheld power drills |
| 1,677,199 | Jul. 17, 1928 | J.T. Nelson | Handle lock for pneumatic tools | |
| 1,684,231 | Sep. 11, 1928 | A. Levedahl | Stud driver | handheld power tool accessories |
