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E21B 19/00

Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables

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E21B 19/16
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E21B 19/20
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E21B 19/22
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E21B 19/24
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E21B 19/002
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E21B 19/008
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E21B 19/02
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E21B 19/08
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E21B 19/10
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E21B 19/12
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E21B 19/14
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E21B 19/18
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 E21B 19/00

Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables

Infobox
Is a
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Patent classification
Classification Type
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Cooperative Patent Classification
Parent classification
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E21B
Website
http://data.epo.org/linked-data/def/cpc/E21B19-00

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