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E21B 17/00

Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; {Cables;} Casings; Tubings

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Edits on 16 Mar, 2022
"update inverses"
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Golden AI
edited on 16 Mar, 2022
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E21B 17/20
"update inverses"
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Golden AI
edited on 16 Mar, 2022
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E21B 17/22
Edits on 5 Mar, 2022
"update inverses"
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Golden AI
edited on 5 Mar, 2022
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E21B 17/18
"Created via: Entity Importer"
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Golden AI
created this topic on 5 Mar, 2022
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 E21B 17/00

Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; {Cables;} Casings; Tubings

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/E21B17-00

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