| All Patents of Type: dies for punch presses |
Patents 1 -
15
of 21
      |
| Number | Date | Patentee | Title | Type |
| 627,558 | Jun. 27, 1899 | F.L. White | Drawing Die Mechanism | dies for punch presses |
| 1,691,878 | Nov. 13, 1928 | J.R. Blakeslee | Metal Working | dies for punch presses |
| 2,245,676 | Jun. 17, 1941 | E.M. Johnson | Tool attachment | tool and die maker |
| 2,422,774 | Jun. 24, 1947 | G.O. Conner | Die set | dies for punch presses |
| 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 |
| 2,997,778 | Aug. 29, 1961 | C.R. Barkley | Apparatus for assembling and securing ball bearings within a retainer | dies for punch presses |
| 3,003,830 | Oct. 10, 1961 | W.J. Blazek, J.J. Strnad | Tubular-type antifriction bearing assemblies | dies for punch presses |
| 3,062,083 | Nov. 06, 1962 | J.J. Strnad | Interchangeable die sets | dies for punch presses |
| 3,063,319 | Nov. 13, 1962 | E.M. Johnson | Machine punch having ejector pin retaining means | tool and die maker |
| 3,170,735 | Feb. 23, 1965 | H.H. Coffin | Insulated die set | tool and die maker |
| 3,195,374 | Jul. 20, 1965 | H.H. Coffin | Method of making an electrically insulated joint | tool and die maker |
| 3,222,968 | Dec. 14, 1965 | C.E. Larson | Machine punch having an ejector pin | 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 |
