Ralph W. Engstrom

Person

  • Lancaster, PA, US

Patents Grantslast 30 patents

  • Information Patent Grant

    Bi-alkali telluride photocathode

    • Patent number 4,196,257
    • Issue date Apr 1, 1980
    • RCA Corporation
    • Ralph W. Engstrom
    • H01 - BASIC ELECTRIC ELEMENTS