Geometrical instruments – Straight-line light ray type – Alignment device
Reexamination Certificate
2006-06-13
2006-06-13
Guadalupe, Yaritza (Department: 2859)
Geometrical instruments
Straight-line light ray type
Alignment device
C033S281000, C033S291000, C033SDIG021
Reexamination Certificate
active
07059057
ABSTRACT:
A laser level disposable on a reference surface includes a housing, a pendulum pivotably connected to the housing, a first laser diode disposed on the pendulum for emitting a first laser beam along a first path, and a lens disposed on the pendulum in the first path for converting the first laser beam into a first planar beam, the first planar beam forming a line on the reference surface.
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Cooper Jeffrey A.
Marshall James D.
Raskin James R.
Sergyeyenko Oleksiy P.
Wheeler Thomas J.
Black & Decker Inc.
Guadalupe Yaritza
Muller Wesley W.
Shapiro Bruce S.
Yun Johnathan
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