| All Patents in class 279/19.6 | 
| Patents 1 - 
					11
					of 11 
       | 
| Number | Date | Patentee | Title | Type | 
| 720,786 | Feb. 17, 1903 | H.S. Covey | Holder on for Pneumatic Tools | tool holders | 
| 1,105,669 | Aug. 04, 1914 | R.A. Norling, A. Levedahl | Rivet-set retainer | pneumatic tools | 
| 1,481,641 | Jan. 22, 1924 | F.A. Jimerson | Tie-tamper front-end construction | pneumatic tools | 
| 1,481,643 | Jan. 22, 1924 | F.A. Jimerson | Percussive-tool front-end construction | impact riveters | 
| 1,524,251 | Jan. 27, 1925 | F.A. Jimerson | Retainer for percussive tools | pneumatic tools | 
| 1,580,617 | Apr. 13, 1926 | A. Levedahl | Rivet-set retainer |  | 
| 1,853,128 | Apr. 12, 1932 | K.A. Johanson, E.G. Hysing | Tool Holder Adapted for Motor Driven Striking Tools | tool holders | 
| 2,154,651 | Apr. 18, 1939 | O.P. Wodack, H.M. Zschau | Tool retainer for portable power driven tools | drill chucks | 
| 2,490,478 | Dec. 06, 1949 | R.J. Schaedler | Wrench socket retainer | handheld power tools | 
| 2,757,007 | Jul. 31, 1956 | S.N. Levy | Shank and bushing assembly for pneumatic tools | pneumatic tools | 
| 3,003,773 | Oct. 10, 1961 | G.H. Fuehrer | Coupling assembly with positive lock |  |