Patents by Inventor Pascal Halle

Pascal Halle 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).

  • Topographical surveying instrument
    Patent number: 4459758
    Abstract: The present invention relates to a topographical surveying instrument, comprising:a horizontal table bearing a shaft perpendicular to the plane of the table,a device adapted to rotate on the shaft and comprising:a generator of a light beam perpendicular to the axis of the shaft,a measuring tape unwindable parallel to the beam,a ruler for plotting on the table.The invention is more particularly applicable to an apparatus for surveying conspicuous points inside premises.
    Type: Grant
    Filed: April 6, 1982
    Date of Patent: July 17, 1984
    Assignee: Sarl: Infomain
    Inventor: Pascal Halle