David Richard Sweatman Hedgeland

Person

  • Redhill, EN

Patents Grantslast 30 patents

  • Information Patent Grant

    Optical scanning apparatus

    • Patent number 4,067,021
    • Issue date Jan 3, 1978
    • The Monotype Corporation Limited
    • Howard Raymond Baylis
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS