Apparatus for generating P waves and S waves
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United States of America Patent
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-
May 17, 1983
Grant Date -
N/A
app pub date -
Dec 12, 1980
filing date -
Dec 29, 1979
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An apparatus for generating P waves and S waves in a ground formation for a geological survey and the like. The apparatus has a percussive device which is driven to abruptly increase water pressure within a bore hole of the ground formation.
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