Earth-boring drill bits
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United States of America Patent
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-
Jan 13, 1981
Issued Date -
N/A
app pub date -
Jun 8, 1978
filing date -
Jun 8, 1978
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The invention relates to the design of earth bore-hole drill bits employing shaped preform cutters containing hard abrasive materials, such as diamonds, the cutters being mounted in companion preformed sockets in a hard metal bit matrix.
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