Geometrical instruments – Straight-line light ray type – Level
Reexamination Certificate
2007-02-06
2007-02-06
Bennett, G. Bradley (Department: 2859)
Geometrical instruments
Straight-line light ray type
Level
C033SDIG021
Reexamination Certificate
active
11260045
ABSTRACT:
A construction laser having a housing and a tilt part positioned within the housing. The tilt part includes a laser unit for generating a laser beam and a deflector for deflecting the laser beam. The tilt part is adjustable relative to the housing by an actuation element. The actuation element includes at least one piezo actuator that is controlled by control electronics.
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Waibel Reinhard
Wuersch Christoph
Abelman ,Frayne & Schwab
Bennett G. Bradley
Hilti Aktiengesellschaft
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