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G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
G06K19/02—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the selection of materials, e.g. to avoid wear during transport through the machine
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Credit Cards Or The Like
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CH337675D1955-04-211956-04-19Elément de commande pour machine comptable commandée par cartes ou rubans
CH337675A
(fr)