U.S. federal trademark · Serial No. 73114411 · Reg. No. 962424
APPARATUS AND INSTRUMENTS FOR PHOTOGRAMMETRIC RESTITUTION, IN PARTICULAR FOR MAPPING, EMPLOYING STEREOGRAPHIC PLATES WITH RESPECTIVE OPTICAL SYSTEMS WHICH ARE ARRANGED TO PROJECT ONTO A SCREEN IMAGES OF REFERENCE MARKS INDICATING THE TRACE OF THE LINE OF SIGHT OF EACH OPTICAL SYSTEM ON THE RESPECTIVE PLATE
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