E21B 19/168
Connecting or disconnecting pipe couplings or joints {using a spinner with rollers or a belt adapted to engage a well pipe}
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Edits on 16 Mar, 2022
Golden AI
Edits on 5 Mar, 2022
Golden AI
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Description (+123 characters)
E21B 19/168
Connecting or disconnecting pipe couplings or joints {using a spinner with rollers or a belt adapted to engage a well pipe}
Infobox
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