TREA

Viliam Raffaj

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  • Salt Lake City, UT, US
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Patents Applicationslast 30 patents

  • Information Patent Application

    Direct drive electric shift two speed planetary gearbox
    • Publication number 20100267508
    • Publication date Oct 21, 2010
    • DJH Engineering Center, Inc.
    • Dusan J. Hvolka
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Two speed planetary electric shift gearbox
    • Publication number 20090247346
    • Publication date Oct 1, 2009
    • DJH Engineering Center, Inc.
    • Dusan J. Hvolka
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...