David A. Schellhammer

Person

  • Wykoff, MN, US

Patents Grantslast 30 patents

  • Information Patent Grant

    Archery arrows

    • Patent number 5,234,220
    • Issue date Aug 10, 1993
    • Morrison Molded Fiber Glass Company
    • David A. Schellhammer
    • F42 - AMMUNITION BLASTING