Patents Assigned to Kabushiki Kaisha Sanwa Denki Seisakusho
  • Scale plate for measuring instruments
    Patent number: 4174500
    Abstract: A plurality of measurement readout displays electrically insulated from one another are provided on a plate member, each of which displays is performed by making use of an excitable material which is capable of being visible only upon the application of a voltage thereto.
    Type: Grant
    Filed: October 3, 1977
    Date of Patent: November 13, 1979
    Assignee: Kabushiki Kaisha Sanwa Denki Seisakusho
    Inventor: Yasuo Kuga