David M. Junker

Person

  • Monroeville, PA, US

Patents Grantslast 30 patents

  • Information Patent Grant

    Chemical feed apparatus

    • Patent number 5,089,127
    • Issue date Feb 18, 1992
    • PPG Industries, Inc.
    • David M. Junker
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE