for producing corrugated sheets

Patents Grantslast 30 patents

  • Information Patent Grant

    Method of making a continuous ceramic fiber reinforced heat exchang...

    • Patent number 5,575,067
    • Issue date Nov 19, 1996
    • Hexcel Corporation
    • Milton F. Custer
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    Manufacture of surface elements

    • Patent number 4,165,999
    • Issue date Aug 28, 1979
    • Euroc Development AB
    • Ernst M. Egner
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    Method and apparatus for making asbestos-cement boards

    • Patent number 4,149,930
    • Issue date Apr 17, 1979
    • Fulgurltwerke Seelze und Eichriede in Luthe bel Hannover Adolf Oesterheld
    • Gunter Exner
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    3832108

    • Patent number 3,832,108
    • Issue date Aug 27, 1974
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    3785914

    • Patent number 3,785,914
    • Issue date Jan 15, 1974
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    3622148

    • Patent number 3,622,148
    • Issue date Nov 23, 1971
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    3616097

    • Patent number 3,616,097
    • Issue date Oct 26, 1971
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    3570066

    • Patent number 3,570,066
    • Issue date Mar 16, 1971
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    3506537

    • Patent number 3,506,537
    • Issue date Apr 14, 1970
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    3489387

    • Patent number 3,489,387
    • Issue date Jan 13, 1970
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    3333296

    • Patent number 3,333,296
    • Issue date Aug 1, 1967
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    3307236

    • Patent number 3,307,236
    • Issue date Mar 7, 1967
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    3231647

    • Patent number 3,231,647
    • Issue date Jan 25, 1966
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    3224205

    • Patent number 3,224,205
    • Issue date Dec 21, 1965
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    3179726

    • Patent number 3,179,726
    • Issue date Apr 20, 1965
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    3173828

    • Patent number 3,173,828
    • Issue date Mar 16, 1965
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    3169274

    • Patent number 3,169,274
    • Issue date Feb 16, 1965
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    3118808

    • Patent number 3,118,808
    • Issue date Jan 21, 1964
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    3099061

    • Patent number 3,099,061
    • Issue date Jul 30, 1963
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    3010511

    • Patent number 3,010,511
    • Issue date Nov 28, 1961
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    2779252

    • Patent number 2,779,252
    • Issue date Jan 29, 1957
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    2741955

    • Patent number 2,741,955
    • Issue date Apr 17, 1956
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    2739483

    • Patent number 2,739,483
    • Issue date Mar 27, 1956
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    2718822

    • Patent number 2,718,822
    • Issue date Sep 27, 1955
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    2698097

    • Patent number 2,698,097
    • Issue date Dec 28, 1954
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    2672076

    • Patent number 2,672,076
    • Issue date Mar 16, 1954
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    2668574

    • Patent number 2,668,574
    • Issue date Feb 9, 1954
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    2655196

    • Patent number 2,655,196
    • Issue date Oct 13, 1953
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    2645269

    • Patent number 2,645,269
    • Issue date Jul 14, 1953
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    2635508

    • Patent number 2,635,508
    • Issue date Apr 21, 1953
    • B28 - WORKING CEMENT, CLAY, OR STONE