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E21B 34/14

Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools

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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 34/142
"Entity importer update"
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Golden AI
edited on 16 Mar, 2022
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E21B 34/06
Edits on 5 Mar, 2022
"Created via: Entity Importer"
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Golden AI
created this topic on 5 Mar, 2022
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 E21B 34/14

Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools

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Cooperative Patent Classification
Website
http://data.epo.org/linked-data/def/cpc/E21B34-14

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