John B. Schwartz

Person

  • Lake Park, FL, US

Patents Grantslast 30 patents

  • Information Patent Grant

    Closure mechanism for a door

    • Patent number 4,121,383
    • Issue date Oct 24, 1978
    • Perry Oceanographics, Inc.
    • Billy H. Holmes
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...