Inventor · disambiguated record

Ralph D. Nickel

Also filed as: NICKEL RALPH D

1 granted patent·38 citations·filing 1990–1990

47Inventor score

Technology areasE21B

Files withBECFIELD HORIZONTAL DRILLING S1

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1 record

0152US5042597AHorizontal drilling method and apparatusBECFIELD HORIZONTAL DRILLING S·Filed 1990·Granted Aug 27, 1991·38 cites·8 claims

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