| Patents for Independent Pneumatic Tool Co. |
Patents 16 -
27
of 27
      |
| Number | Date | Patentee | Title | Type |
| 1,684,633 | Sep. 18, 1928 | A. Levedahl | Screw or nut driving device for portable power-driven rotary tools | handheld power tools |
| 1,695,777 | Dec. 18, 1928 | R.A. Norling | Reversible drill throttle | |
| 1,706,460 | Mar. 26, 1929 | R.A. Norling | Chisel retainer for chipping hammers | |
| 1,708,183 | Apr. 09, 1929 | A. Levedahl | Spindle lock | |
| 1,737,419 | Nov. 26, 1929 | I.A. Hanssen | Pneumatic tool | |
| 1,831,813 | Nov. 17, 1931 | A. Levedahl | Centering guide | handheld power tool accessories |
| 2,152,969 | Apr. 04, 1939 | W.W. Nash | Balancer | handheld power tool accessories |
| 2,272,273 | Feb. 10, 1942 | L.E. Parker | Sanding machine | handheld power sanders |
| D156,319 | Dec. 06, 1949 | A. Bushnell | Impact Wrench Unit | |
| D156,320 | Dec. 06, 1949 | A. Bushnell | Impact Wrench Unit | |
| D159,043 | Jun. 20, 1950 | A. Bushnell | Portable power saw | handheld circular saws |
| 2,565,223 | Aug. 21, 1951 | M.B. Gentzel | Belt tightening and aligning mechanism for abrading devices | handheld power sanders |
