Oil well drilling bit
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United States of America Patent
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-
Dec 13, 1983
Issued Date -
N/A
app pub date -
May 18, 1981
filing date -
Jul 30, 1979
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An oil well drilling bit is disclosed of the type utilizing hard metal inserts in the rolling cutters wherein each row of inserts on each cutter is located thereon in a sinusoidal or varying pattern rather than the strictly circumferential pattern of the prior art.
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