with direct-acting explosion chambers

Patents Grantslast 30 patents

  • Information Patent Grant

    Pavement breaking apparatus

    • Patent number 4,634,311
    • Issue date Jan 6, 1987
    • Hercules Machinery Corporation
    • John W. Jinnings
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    3827410

    • Patent number 3,827,410
    • Issue date Aug 6, 1974
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    2560559

    • Patent number 2,560,559
    • Issue date Jul 17, 1951
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    2545999

    • Patent number 2,545,999
    • Issue date Mar 20, 1951
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES