Joong S. Chang

Person

  • Cypress, CA, US

Patents Grantslast 30 patents

  • Information Patent Grant

    Multi-speed bicycle transmission

    • Patent number 6,186,017
    • Issue date Feb 13, 2001
    • In H. Kang
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...