Method and apparatus for distance measurement

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

Reexamination Certificate

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C033S0010DD

Reexamination Certificate

active

07086162

ABSTRACT:
A device for measuring physical characteristics includes a beam generator component generating first and second beams at two points. The device further includes a protractor that measures the angle between the beams. The device measures the distances to the two points and with the angle between the two beams, determines a predetermined characteristic, such as the distance between the two points.

REFERENCES:
patent: 5493786 (1996-02-01), Thomson
patent: 6199292 (2001-03-01), Ebeling
patent: 6560560 (2003-05-01), Tachner
patent: 6694629 (2004-02-01), Goodrich
patent: 6763598 (2004-07-01), Chen
Product Description: Calculated Industries 3336 Laser Dimension Master, by Calculated Industries, Amazon.com, Web site:htt//www.amazon.com.
Product Description: Bosch DWM40L Digital Protractor/Angle Finder, Web site: http://store.yahoo.com/boschpowertoolsource.

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