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E21D 21/02

Anchoring-bolts for roof, floor {in galleries or longwall working}, or shaft-lining protection having means for indicating tension

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Edits on 16 Mar, 2022
"Entity importer update"
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Golden AI
edited on 16 Mar, 2022
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E21D 21/00
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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 E21D 21/02

Anchoring-bolts for roof, floor {in galleries or longwall working}, or shaft-lining protection having means for indicating tension

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Patent classification
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Cooperative Patent Classification
Website
http://data.epo.org/linked-data/def/cpc/E21D21-02

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