by means of guide members shaped to revolve the work during its passage

Patents Grantslast 30 patents

  • Information Patent Grant

    Twist roller guide device for rolling mill use

    • Patent number 4,270,376
    • Issue date Jun 2, 1981
    • Kotobuki Sangyo Kabushiki Kaisha
    • Hiroaki Shimada
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Method of manufacturing rolled wire rod

    • Patent number 4,222,257
    • Issue date Sep 16, 1980
    • Hamburger Stahlwerke GmbH
    • Klaus Theis
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Apparatus for twisting and guiding stock into roll grooves

    • Patent number 4,084,421
    • Issue date Apr 18, 1978
    • Morgardshammar Aktiebolag
    • Walter Johann Karlberger
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    3911714

    • Patent number 3,911,714
    • Issue date Oct 14, 1975
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    3817072

    • Patent number 3,817,072
    • Issue date Jun 18, 1974
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    3776013

    • Patent number 3,776,013
    • Issue date Dec 4, 1973
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    3734305

    • Patent number 3,734,305
    • Issue date May 22, 1973
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    3712605

    • Patent number 3,712,605
    • Issue date Jan 23, 1973
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    3699795

    • Patent number 3,699,795
    • Issue date Oct 24, 1972
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    3474525

    • Patent number 3,474,525
    • Issue date Oct 28, 1969
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    3354684

    • Patent number 3,354,684
    • Issue date Nov 28, 1967
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    3344642

    • Patent number 3,344,642
    • Issue date Oct 3, 1967
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    3330143

    • Patent number 3,330,143
    • Issue date Jul 11, 1967
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    3174320

    • Patent number 3,174,320
    • Issue date Mar 23, 1965
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    3013453

    • Patent number 3,013,453
    • Issue date Dec 19, 1961
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    2747720

    • Patent number 2,747,720
    • Issue date May 29, 1956
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    2653497

    • Patent number 2,653,497
    • Issue date Sep 29, 1953
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    2069517

    • Patent number 2,069,517
    • Issue date Feb 2, 1937
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    2033649

    • Patent number 2,033,649
    • Issue date Mar 10, 1936
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    2023913

    • Patent number 2,023,913
    • Issue date Dec 10, 1935
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    2016141

    • Patent number 2,016,141
    • Issue date Oct 1, 1935
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    2014855

    • Patent number 2,014,855
    • Issue date Sep 17, 1935
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    1968670

    • Patent number 1,968,670
    • Issue date Jul 31, 1934
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    1735282

    • Patent number 1,735,282
    • Issue date Nov 12, 1929
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    1680105

    • Patent number 1,680,105
    • Issue date Aug 7, 1928
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    1655845

    • Patent number 1,655,845
    • Issue date Jan 10, 1928
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    1406084

    • Patent number 1,406,084
    • Issue date Feb 7, 1922
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    1405985

    • Patent number 1,405,985
    • Issue date Feb 7, 1922
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    1157378

    • Patent number 1,157,378
    • Issue date Oct 19, 1915
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    997765

    • Patent number 997,765
    • Issue date Jul 11, 1911
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...