Method for rethreading tubular members
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United States of America Patent
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Dec 20, 1983
Grant Date -
N/A
app pub date -
Nov 6, 1981
filing date -
Nov 6, 1981
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The present invention discloses methods and apparatus for rethreading damaged or incorrectly threaded tubular members such as tool joints, casing, and tubing for oil wells, which methods and apparatus are particularly advantageous for use with NC and CNC machines.
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