for travelling razor blades, in the form of a band or fitted on a transfer means

Patents Grantslast 30 patents

  • Information Patent Grant

    Blade stropping apparatus

    • Patent number 4,752,304
    • Issue date Jun 21, 1988
    • Hacker Instruments, Inc.
    • Ivan E. Hills
    • B24 - GRINDING POLISHING
  • Information Patent Grant

    Modular industrial blade grinding and honing machine

    • Patent number 4,718,197
    • Issue date Jan 12, 1988
    • Hans M. Rath
    • B24 - GRINDING POLISHING
  • Information Patent Grant

    Method and apparatus for forming a razor blade edge

    • Patent number 4,265,055
    • Issue date May 5, 1981
    • Warner-Lambert Company
    • Cyril A. Cartwright
    • B24 - GRINDING POLISHING
  • Information Patent Grant

    3566854

    • Patent number 3,566,854
    • Issue date Mar 2, 1971
    • B24 - GRINDING POLISHING
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    3494081

    • Patent number 3,494,081
    • Issue date Feb 10, 1970
    • B24 - GRINDING POLISHING
  • Information Patent Grant

    3468195

    • Patent number 3,468,195
    • Issue date Sep 23, 1969
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    3461616

    • Patent number 3,461,616
    • Issue date Aug 19, 1969
    • B24 - GRINDING POLISHING
  • Information Patent Grant

    3283665

    • Patent number 3,283,665
    • Issue date Nov 8, 1966
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    3238675

    • Patent number 3,238,675
    • Issue date Mar 8, 1966
    • B24 - GRINDING POLISHING
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    3071904

    • Patent number 3,071,904
    • Issue date Jan 8, 1963
    • B24 - GRINDING POLISHING
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    2911762

    • Patent number 2,911,762
    • Issue date Nov 10, 1959
    • B24 - GRINDING POLISHING
  • Information Patent Grant

    2879779

    • Patent number 2,879,779
    • Issue date Mar 31, 1959
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    2863660

    • Patent number 2,863,660
    • Issue date Dec 9, 1958
    • B24 - GRINDING POLISHING
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    2709874

    • Patent number 2,709,874
    • Issue date Jun 7, 1955
    • B24 - GRINDING POLISHING
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    2692457

    • Patent number 2,692,457
    • Issue date Oct 26, 1954
    • B24 - GRINDING POLISHING
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    2290964

    • Patent number 2,290,964
    • Issue date Jul 28, 1942
    • B24 - GRINDING POLISHING
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    2164959

    • Patent number 2,164,959
    • Issue date Jul 4, 1939
    • B24 - GRINDING POLISHING
  • Information Patent Grant

    2156038

    • Patent number 2,156,038
    • Issue date Apr 25, 1939
    • B24 - GRINDING POLISHING
  • Information Patent Grant

    2001727

    • Patent number 2,001,727
    • Issue date May 21, 1935
    • B24 - GRINDING POLISHING
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    1957602

    • Patent number 1,957,602
    • Issue date May 8, 1934
    • B24 - GRINDING POLISHING
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    1937795

    • Patent number 1,937,795
    • Issue date Dec 5, 1933
    • B24 - GRINDING POLISHING
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    1936075

    • Patent number 1,936,075
    • Issue date Nov 21, 1933
    • B24 - GRINDING POLISHING
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    1915477

    • Patent number 1,915,477
    • Issue date Jun 27, 1933
    • B24 - GRINDING POLISHING
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    1915478

    • Patent number 1,915,478
    • Issue date Jun 27, 1933
    • B24 - GRINDING POLISHING
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    1914013

    • Patent number 1,914,013
    • Issue date Jun 13, 1933
    • B24 - GRINDING POLISHING
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    1907595

    • Patent number 1,907,595
    • Issue date May 9, 1933
    • B24 - GRINDING POLISHING
  • Information Patent Grant

    1902010

    • Patent number 1,902,010
    • Issue date Mar 21, 1933
    • B24 - GRINDING POLISHING
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    1901829

    • Patent number 1,901,829
    • Issue date Mar 14, 1933
    • B24 - GRINDING POLISHING
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    1897724

    • Patent number 1,897,724
    • Issue date Feb 14, 1933
    • B24 - GRINDING POLISHING
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    1848204

    • Patent number 1,848,204
    • Issue date Mar 8, 1932
    • B24 - GRINDING POLISHING