Metal working – Method of mechanical manufacture – Repairing
Patent
1981-11-06
1983-12-20
Combs, Ervin M.
Metal working
Method of mechanical manufacture
Repairing
29406, 29407, 10 1B, B23P 600
Patent
active
044208650
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.
REFERENCES:
patent: 2567480 (1951-09-01), Heldenbrand
Caddell Michael J.
Combs Ervin M.
Reed Tubular Products Co.
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