With Calendar Patents (Class D10/3)
  • Patent number: 4077032
    Abstract: Electronic display apparatus simulating a mechanical analog display for the portrayal of two or more measured variables includes an indicator assembly having a substrate supporting a plurality of optically variable elements, combinations of which enable the visual presentation of the measured parameters relative to a fixed scale or to each other. The apparatus is especially well suited for use as the time display of an electronic horological instrument either alone or together with a month and date digital display and/or a day of the week display which includes an array of seven indicators five of which are arranged to form a separately discernable group representing the days Monday, Tuesday, Wednesday, Thursday and Friday. The display apparatus is electronically driven and includes no moving parts.
    Type: Grant
    Filed: January 7, 1976
    Date of Patent: February 28, 1978
    Inventor: S. Alan Volkman
  • Patent number: D249649
    Type: Grant
    Filed: January 7, 1977
    Date of Patent: September 26, 1978
    Assignee: Realtone Electronics, Inc.
    Inventor: Takashi Ohtani
  • Patent number: D250201
    Type: Grant
    Filed: August 10, 1976
    Date of Patent: November 7, 1978
    Inventor: Coy S. Pierce
  • Patent number: D258811
    Type: Grant
    Filed: November 28, 1978
    Date of Patent: April 7, 1981
    Inventor: Chi T. You
  • Patent number: D260374
    Type: Grant
    Filed: February 5, 1979
    Date of Patent: August 25, 1981
    Assignee: Howard Miller Clock Company
    Inventor: Arthur Umanoff