OPTICAL SURVEYING INSTRUMENTS NAMELY

Brand Owner (click to sort) Address Description
EAGLE KEUFFEL & ESSER COMPANY HOBOKEN, NEW JERSEY, AND NEW YORK, N.Y. Optical Surveying Instruments-Namely, Transits, Theodolites, Optical Levels, Automatic Levels, and Transit-Levels;
EAGLE KEUFFEL & ESSER COMPANY HOBOKEN, NEW JERSEY, AND NEW YORK, N.Y. Optical Surveying Instruments-Namely, Transits, Theodolites, Optical Levels, Automatic Levels, and Transit-Levels;
 

Where the owner name is not linked, that owner no longer owns the brand

    
Technical Examples
  1. A sophisticated surveying instrument consists of a workbench, a coordinate board and two optical sensors. The workbench fastened to a coordinate board with several square grids of equal size forms a connected surveying instrument. Inside the grid there is a readable icon recognizable for the apex coordinate. One of the two optical sensors projects against the workbench to define the starting point and end point of the object while the other against the coordinate, so as to identify the recognizable icon within the projected pixel block on the coordinate board and enter the projected image into an electronic computer for comparison, analysis and conversion, thus identifies the position of the pixel block's center on the coordinate board, defining the corresponding value of the starting point and end point.