Automated method and apparatus for distance measurement

Geometrical instruments – Straight-line light ray type – Multisight line

Reexamination Certificate

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C033S286000

Reexamination Certificate

active

07127821

ABSTRACT:
A device for measuring physical characteristics includes a beam generator selectively generating a target beam. The device further includes two angle detectors that measure the respective angles between the beams and, respectively a vertical and a horizontal axis. The device further includes a calculator that calculates the distances to said points as well as the distance between the two points.

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patent: 6199292 (2001-03-01), Ebeling
patent: 6453568 (2002-09-01), Hymer
patent: 6532675 (2003-03-01), Letourneau
patent: 6560560 (2003-05-01), Tachner
patent: 6694629 (2004-02-01), Goodrich
patent: 6763598 (2004-07-01), Chen
U.S. Appl. No. 11/021,776, filed Jun. 29, 2006, Tyroler.

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