B42F 17/30
Card-filing arrangements, e.g. card indexes or catalogues or filing cabinets modified for particular uses
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Edits on 9 Mar, 2022
Golden AI
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Infobox (+4 properties)
Description (+105 characters)
B42F 17/30
Card-filing arrangements, e.g. card indexes or catalogues or filing cabinets modified for particular uses
Infobox
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Parent classification
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