David Ryan Porter

Person

  • Placerville, CA, US

Patents Grantslast 30 patents

  • Information Patent Grant

    Rolled material transfer cart

    • Patent number 8,801,005
    • Issue date Aug 12, 2014
    • DST Output West, LLC
    • Brett Jay Flickner
    • B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS