Patents by Inventor Bo E. Lindberg

Bo E. Lindberg has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Hole punching device
    Patent number: 4742744
    Abstract: A device for manual hole punching of sheet material is made up from extruded profiles, one forming a cover (1), which is movable towards a bottom part (2) formed from two combined sections (7,8). The cover carries punches (22) running in holes (23). A counter-acting spring bias is obtained by spring means (25) inserted between the cover and bottom part.
    Type: Grant
    Filed: December 17, 1986
    Date of Patent: May 10, 1988
    Inventor: Bo E. Lindberg