Patents Assigned to Business Efficiency Aids, Inc.
  • Rotary card index system
    Patent number: 4204351
    Abstract: A rotary card index system including a card carrying drum rotatably mounted on a support frame and a pivotal plate member mounted on said frame for movement to and from a retracted inoperative position and an operable position between adjacent cards for maintaining the adjacent cards in spaced relationship.
    Type: Grant
    Filed: August 11, 1977
    Date of Patent: May 27, 1980
    Assignee: Business Efficiency Aids, Inc.
    Inventor: Graham S. W. Hawkins
  • Card file control
    Patent number: 4015350
    Abstract: This invention provides control means for use in card files and the like for fanning the cards apart for improved readability. Resilient pleated members are provided along the opposite sides of the cards, while the cards are held relatively together at their bottoms, whereby the cards are fanned apart at their tops for improved readability and ease of selection.
    Type: Grant
    Filed: November 17, 1975
    Date of Patent: April 5, 1977
    Assignee: Business Efficiency Aids, Inc.
    Inventor: Rolf Zurwelle