David E. Stephens

Person

  • Concord, MA, US

Patents Grantslast 30 patents

  • Information Patent Grant

    Soldering apparatus exhaust system

    • Patent number 4,451,000
    • Issue date May 29, 1984
    • Hollis Engineering, Inc.
    • David E. Stephens
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR