Patents Assigned to Learning Resources, Inc.
  • Digital and analog teaching clock
    Patent number: 5851118
    Abstract: A teaching clock comprising an analog clock face having numeric indicia of hour and minute disposed about its periphery, an hour hand and a minute hand pivotally mounted and substantially centrally disposed proximate to the analog clock face, a digital time display disposed adjacent to the analog clock face, and a gear assembly responsive to movement of the minute hand for conforming a time displayed by the digital time display to a time indicated by the hour hand and the minute hand.
    Type: Grant
    Filed: September 13, 1996
    Date of Patent: December 22, 1998
    Assignee: Learning Resources, Inc.
    Inventors: Richard M. Woldenberg, Yuen Po Man
  • Teaching scale
    Patent number: D400813
    Type: Grant
    Filed: September 29, 1997
    Date of Patent: November 10, 1998
    Assignee: Learning Resources, Inc.
    Inventors: Eric Toriumi, Tirza Ernst
  • Slide viewer
    Patent number: D407423
    Type: Grant
    Filed: September 29, 1997
    Date of Patent: March 30, 1999
    Assignee: Learning Resources, Inc.
    Inventors: Lonnie Pogue, Eric Toriumi