Device for aligning a geodetic instrument over a defined position mark
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United States of America Patent
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Nov 3, 1992
Grant Date -
N/A
app pub date -
Mar 8, 1991
filing date -
Mar 8, 1990
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A device for centering geodetic instruments over defined ground marks or defined position marks is described, in which a visible light beam is projected onto a ground mark or position mark. In an advantageous additional feature, the light beam of the invention can be used to measure the distance between the sighting line of the geodetic instrument and the sighted ground mark or position mark.
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Cited Art Landscape
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