| All Patents in class 408/20 |
Patents 31 -
45
of 55
      |
| Number | Date | Patentee | Title | Type |
| 2,621,686 | Dec. 16, 1952 | J.E. Tompkins | Machine tool with motor-driven rotary and axially fed tools | radial arm saws |
| 2,623,269 | Dec. 30, 1952 | H. Goldschmidt | Convertible material working machine | wood lathes |
| 2,631,619 | Mar. 17, 1953 | A.J. Folli | Reciprocating saw tool attachment | handheld power reciprocating saws |
| 2,648,999 | Aug. 18, 1953 | H.N. Stephan | Horizontal boring, drilling and milling machine | milling machines |
| 2,661,037 | Dec. 01, 1953 | L. McGihon | Compound woodworking tool with variable drive | wood lathes |
| 2,686,351 | Aug. 17, 1954 | D.L. Chandler | Power-driven hacksaw | metal sawing machines |
| 2,728,364 | Dec. 27, 1955 | A.A. Muehling | Universal machine tool having a swingable boom | tablesaws |
| 2,768,663 | Oct. 30, 1956 | P.C. Jones | Lathe and drill press assembly | wood lathes |
| 2,775,341 | Dec. 25, 1956 | R.J. Williams | Hand Bit Assembly Holder | hand drills |
| 2,783,527 | Mar. 05, 1957 | A. Davidson | Tool Holder | metalworking machine tool holders |
| 2,784,752 | Mar. 12, 1957 | H.R. Emrick | Multiple purpose machine tool | scrollsaws |
| 2,808,085 | Oct. 01, 1957 | R.R. Hollien, E.L. Staiger | Hand portable electric power unit | handheld power drills |
| 2,811,182 | Oct. 29, 1957 | D.D. Beale, R.L. Allen, F. Lake, W.E. Johnson | Radial arm power tool | radial arm saws |
| 2,835,172 | May 20, 1958 | L.D. Libby, R.E. Saving, O.W. Barker | Rotary Head Milling Attachment | milling machine accessories |
| 2,835,289 | May 20, 1958 | G.E. Rockwell | Multi-tool power driven wood working machine | combination machines |
