Inventor · disambiguated record

Art Mitchell

Also filed as: MITCHELL ART

1 granted patent·9 citations·filing 1987–1987

31Inventor score

Technology areasE21B

Files withMITCHELL WELL SERVICE INC1

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1 record

0124US4828291AFluted safety joint apparatus for use in cased oil and gas wellsMITCHELL WELL SERVICE INC·Filed 1987·Granted May 9, 1989·9 cites·7 claims

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