Superimposed qr code for dispenser and replaceable reservoir
作者： Heiner Ophardt , David Duncan , Hendrik Ophardt
DOI:
关键词:
摘要: A dispenser with a replaceable cartridge containing product to be dispensed, and housing configured removably receive the cartridge. The has surface that is marked first marking, second marking. so that, when received by housing, marking together form machine readable code detectable from outside of housing.
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