Geometrical instruments – Straight-line light ray type – Vertical angle
Reexamination Certificate
2009-01-27
2010-11-30
Bennett, G. Bradley (Department: 2841)
Geometrical instruments
Straight-line light ray type
Vertical angle
C033S290000, C340S689000
Reexamination Certificate
active
07841094
ABSTRACT:
The present invention relates to an optical instrument with an angle indicator and a method for operating the same enabling simple monitoring of instrument inclination and operation in a large angle range. The optical instrument comprises a base portion, a head portion tiltable relative to the base portion within a device angle range, a base angle indicator attached to the base portion for determining a base angle of the base portion and a determination unit for determining an indication angle range of the head portion based on the base angle and the device angle range.
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Bennett G. Bradley
Dinsmore & Shohl LLP
Trimble Kaiserslautern GmbH
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