TREA

by evacuating one or more of the mould parts; Vacuum machines

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Industry

  • CPC
  • B28B21/40
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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

B28B21/40by evacuating one or more of the mould parts; Vacuum machines
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    3050106
    • Patent number 3,050,106
    • Issue date Aug 21, 1962
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    2966713
    • Patent number 2,966,713
    • Issue date Jan 3, 1961
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    2694349
    • Patent number 2,694,349
    • Issue date Nov 16, 1954
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    2628402
    • Patent number 2,628,402
    • Issue date Feb 17, 1953
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    2625728
    • Patent number 2,625,728
    • Issue date Jan 20, 1953
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    2585756
    • Patent number 2,585,756
    • Issue date Feb 12, 1952
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    2502789
    • Patent number 2,502,789
    • Issue date Apr 4, 1950
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    2429012
    • Patent number 2,429,012
    • Issue date Oct 14, 1947
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    2386961
    • Patent number 2,386,961
    • Issue date Oct 16, 1945
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    2369608
    • Patent number 2,369,608
    • Issue date Feb 13, 1945
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    2342801
    • Patent number 2,342,801
    • Issue date Feb 29, 1944
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    2321277
    • Patent number 2,321,277
    • Issue date Jun 8, 1943
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    2228636
    • Patent number 2,228,636
    • Issue date Jan 14, 1941
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    2165671
    • Patent number 2,165,671
    • Issue date Jul 11, 1939
    • B28 - WORKING CEMENT, CLAY, OR STONE

Patents Applicationslast 30 patents