TREA

Roy A. Zangrando

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  • Lake Hiawatha, NJ, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Dead bolt lock operable by pressurized fluid
    • Patent number 4,647,089
    • Issue date Mar 3, 1987
    • The United States of America as represented by the Secretary of the Army
    • Roy A. Zangrando
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Pneumatic key lock
    • Patent number 4,601,183
    • Issue date Jul 22, 1986
    • The United States of America as represented by the Secretary of the Army
    • Roy A. Zangrando
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Coded actuator
    • Patent number 4,148,381
    • Issue date Apr 10, 1979
    • The United States of America as represented by the Secretary of the Army
    • Roy A. Zangrando
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Coded switching device
    • Patent number 4,112,267
    • Issue date Sep 5, 1978
    • The United States of America as represented by the Secretary of the Army
    • Roy A. Zangrando
    • G07 - CHECKING-DEVICES