Leonard John Michael Ralph

Person

  • Essendon, AU

Patents Grantslast 30 patents

  • Information Patent Grant

    Method of constructing conveyor belting

    • Patent number 4,019,941
    • Issue date Apr 26, 1977
    • Dunlop Australia Limited
    • Eric Victor Donald Prince
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL