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公开(公告)号：US3567911A
公开(公告)日：1971-03-02
申请号：US3567911D
申请日：1968-04-23
Applicant: WANG LABORATORIES
Inventor： GRUNDBERG DONALD NESTOR , CHU GE YAO
CPC classification number: G06K7/06
Abstract: A sensor for punched cards and the like providing arrays of self-cleaning contacts of high reliability economically fabricated from standardized modular components. Contact combs having a linear set of bifurcated contact fingers are interleaved with spacers to form a planar array of contact pairs.
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