Patents by Inventor Abraham E. Shlager

Abraham E. Shlager 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).

  • Layout tool for locating holes on structural steel
    Patent number: 4228594
    Abstract: A layout tool is movable along a structural beam or girder and includes measuring scales adapted to facilitate accurate location of holes to be formed at selected places on the beam. The tool is adapted for manual use at the construction site.
    Type: Grant
    Filed: June 6, 1979
    Date of Patent: October 21, 1980
    Inventor: Abraham E. Shlager