TREA

specially for coverings around manhole-shafts or the like

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Industry

  • CPC
  • E01C2201/065
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Parent Industries

EFIXED CONSTRUCTIONS E01Road, railway construction E01CCONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR E01C2201/00Paving elements

Current Industry

E01C2201/065specially for coverings around manhole-shafts or the like
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Surface covering
    • Patent number 5,678,370
    • Issue date Oct 21, 1997
    • Stonemarket
    • James E. Douglass
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    Paving stone construction set
    • Patent number 5,533,827
    • Issue date Jul 9, 1996
    • Rene Scheiwiller
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    Interlocking ground slab element and method
    • Patent number 5,186,574
    • Issue date Feb 16, 1993
    • Wayne R. Tavares
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    Circular paving stone arrangement
    • Patent number 5,137,392
    • Issue date Aug 11, 1992
    • John R. McCoy
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    Paving stone set
    • Patent number 4,907,909
    • Issue date Mar 13, 1990
    • Willi Ruckstuhl
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    Paving stone
    • Patent number 4,572,699
    • Issue date Feb 25, 1986
    • Hans Rinninger u. Sohn GmbH u.Co.
    • Hans J. Rinninger
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES

Patents Applicationslast 30 patents