Laser level with adjustable laser projection line

Geometrical instruments – Straight-line light ray type – Alignment device

Reexamination Certificate

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Reexamination Certificate

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11383041

ABSTRACT:
A laser level with adjustable laser projection line comprises a support bracket, a housing, a switch, a laser generator which project a fanned laser beam to the surface of the work piece to form a line, and wherein a rotating mechanism is coupled to rotate the laser generator thereby causing rotation of the line. There is also a positioning device to position the laser level on an arbitrary surface.

REFERENCES:
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patent: 5519942 (1996-05-01), Webb
patent: 5531031 (1996-07-01), Green
patent: 5842282 (1998-12-01), Ting
patent: 6012229 (2000-01-01), Shiao
patent: 6502319 (2003-01-01), Goodrich et al.
patent: 6735879 (2004-05-01), Malard et al.
patent: 7013570 (2006-03-01), Levine et al.
patent: 7055252 (2006-06-01), Wu
patent: 2005/0022399 (2005-02-01), Wheeler et al.

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