Patents Assigned to Duratec Corporation
  • Enclosure device with magnetically attached calculator
    Patent number: 4751664
    Abstract: An enclosure has a first flap member portion and a second member flap portion flexibly connected to each other so that the flap member portions may be moved away from and toward each other. In one embodiment, the enclosure retains a check recordal pad and a blank check pad. A calculator is magnetically attached to the first flap member.
    Type: Grant
    Filed: March 20, 1986
    Date of Patent: June 14, 1988
    Assignee: Duratec Corporation
    Inventor: Ronald A. Holm
  • Display sheet
    Patent number: D312835
    Type: Grant
    Filed: May 29, 1987
    Date of Patent: December 11, 1990
    Assignee: Duratec Corporation
    Inventor: Ronald A. Holm