TREA

and applying centrifugal forces

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  • CPC
  • B28B21/68
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Parent Industries

BPERFORMING OPERATIONS TRANSPORTING B28Stoneworking B28BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG, OR MIXTURES CONTAINING CEMENTITIOUS MATERIAL B28B21/00Methods or machines specially adapted for the production of tubular articles

Current Industry

B28B21/68and applying centrifugal forces
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Patents Grantslast 30 patents

  • Information Patent Grant

    Method and apparatus of manufacturing electric pole
    • Patent number 7,290,338
    • Issue date Nov 6, 2007
    • Hammtek Asia, Inc.
    • Seung Soo Kim
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    Apparatus for making reinforced concrete products
    • Patent number 4,522,579
    • Issue date Jun 11, 1985
    • Philip L. Rotondo
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    Method for making reinforced concrete products
    • Patent number 4,504,428
    • Issue date Mar 12, 1985
    • Philip L. Rotondo
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    Method and apparatus for making reinforced concrete products
    • Patent number 4,404,786
    • Issue date Sep 20, 1983
    • Philip L. Rotondo
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    2566689
    • Patent number 2,566,689
    • Issue date Sep 4, 1951
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    2227153
    • Patent number 2,227,153
    • Issue date Dec 31, 1940
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    2224419
    • Patent number 2,224,419
    • Issue date Dec 10, 1940
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    1896973
    • Patent number 1,896,973
    • Issue date Feb 7, 1933
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    1611804
    • Patent number 1,611,804
    • Issue date Dec 21, 1926
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    1592673
    • Patent number 1,592,673
    • Issue date Jul 13, 1926
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    1558067
    • Patent number 1,558,067
    • Issue date Oct 20, 1925
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    1528518
    • Patent number 1,528,518
    • Issue date Mar 3, 1925
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    1521264
    • Patent number 1,521,264
    • Issue date Dec 30, 1924
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    1510117
    • Patent number 1,510,117
    • Issue date Sep 30, 1924
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    1499762
    • Patent number 1,499,762
    • Issue date Jul 1, 1924
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    1400457
    • Patent number 1,400,457
    • Issue date Dec 13, 1921
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    937178
    • Patent number 937,178
    • Issue date Oct 19, 1909
    • B28 - WORKING CEMENT, CLAY, OR STONE

Patents Applicationslast 30 patents