| All Patents in class 384/30 |
Patents 1 -
13
of 13
      |
| Number | Date | Patentee | Title | Type |
| 1,921,421 | Aug. 08, 1933 | N.M. Marsilius | Removable guide pin | tool and die maker |
| 2,157,762 | May 09, 1939 | W.R. Knox | Machine tool | drilling and boring |
| 2,422,774 | Jun. 24, 1947 | G.O. Conner | Die set | dies for punch presses |
| 2,627,313 | Feb. 03, 1953 | N.M. Marsilius | Safety device for die-sets | tool and die maker |
| 2,774,430 | Dec. 18, 1956 | W.J. Blazek | Latching means for die set retainers | dies for punch presses |
| 2,823,960 | Feb. 18, 1958 | W.J. Blazek, J.J. Strnad | Die sets for machine presses | dies for punch presses |
| 2,846,278 | Aug. 05, 1958 | W.J. Blazek | Positioning means for guide assemblies of punch press die sets | dies for punch presses |
| 2,987,348 | Jun. 06, 1961 | W.J. Blazek | Bearing retainer-indexing means for antifriction die sets | |
| 3,055,714 | Sep. 25, 1962 | H.H. Coffin | Die set bearing | tool and die maker |
| 3,170,735 | Feb. 23, 1965 | H.H. Coffin | Insulated die set | tool and die maker |
| 3,386,781 | Jun. 04, 1968 | W.J. Blazek, C.D. Hillis | Die set having readily demountable guide pins and bushings | dies for punch presses |
| 3,582,157 | Jun. 01, 1971 | E.J. Hammon | Bearing assembly having an interference-fit bearing surface of synthetic resin material | dies for punch presses |
| 3,582,158 | Jun. 01, 1971 | E.J. Hammon | Die set having readily replaceable guide pins and bushings | dies for punch presses |
