Mark R. Yager

Person

  • Ravenna, OH, US

Patents Grantslast 30 patents

  • Information Patent Grant

    Device for teaching time

    • Patent number 7,362,661
    • Issue date Apr 22, 2008
    • K&M International, Inc.
    • Mark R. Yager
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS