GRADE SIGHTING DEVICES FOR PAVERS

Brand Owner Address Description
MICRO-GUIDE BARBER-GREENE COMPANY 633 WEST PARK AVENUE AURORA IL GRADE SIGHTING DEVICES FOR PAVERS;
 

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

   
Technical Examples
  1. A system of independently oriented sighting devices includes a first sighting device (120) and a second sighting device (110). Upon aligning a line of sight of the first sighting device (12) with a target object (130), the first sighting device transmits a reference signal over a communications link (140). The second sighting device (110) determines its orientation in space relative to the orientation of the first sighting device (120) from characteristics of the reference signal. Thus, absolute coordinates of the target object (130) need not be known by the second sighting device (110) nor is it required that they be transmitted by the first sighting device (120). The user (115) of the second sighting device is directed to rotate the second sighting device (110) towards the target object (130) via feedback through guidance indicators located in a viewing port (250) thereof.