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E21B 10/64

Drill bits characterised by the whole or part thereof being insertable into or removable from the borehole without withdrawing the drilling pipe

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Edits on 16 Mar, 2022

"update inverses"

edited on 16 Mar, 2022

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Child classification

"Entity importer update"

edited on 16 Mar, 2022

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Edits on 5 Mar, 2022

"Created via: Entity Importer"

created this topic on 5 Mar, 2022

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Description (+144 characters)

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E21B 10/64

Drill bits characterised by the whole or part thereof being insertable into or removable from the borehole without withdrawing the drilling pipe

Infobox

Is a

Patent classification

Classification Type

Cooperative Patent Classification

Website

http://data.epo.org/linked-data/def/cpc/E21B10-64

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