Convertible directional azimuth and dip measuring modular compass and method
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United States of America Patent
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Mar 9, 2004
Grant Date -
N/A
app pub date -
Dec 23, 2002
filing date -
Dec 23, 2002
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A compass adapted to measure direction and dip values with or without the assistance of the earth's magnetic field. A laser pointer module and a magnetic needle module are interchangeably arranged in a body having an attached reference angle plate appropriately set to measure horizontal and vertical angles. The compass is especially useful in underground mines or other locations having magnetic anomalies where conventional magnetic compasses are rendered useless. Both embodiments are capable of taking readings when the compass is set in an upright or upside-down position.
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Cited Art Landscape
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