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B43K 21/033

Writing-core feeding mechanisms with sliding tubelike writing-core guide with automatic feed by pressure during use of pencil

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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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B43K 21/027
Edits on 9 Mar, 2022
"Created via: Entity Importer"
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Golden AI
created this topic on 9 Mar, 2022
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 B43K 21/033

Writing-core feeding mechanisms with sliding tubelike writing-core guide with automatic feed by pressure during use of pencil

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Cooperative Patent Classification
Website
http://data.epo.org/linked-data/def/cpc/B43K21-033

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