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公开(公告)号：US3556621A
公开(公告)日：1971-01-19
申请号：US3556621D
申请日：1969-06-19
Applicant: STEWART WARNER CORP
Inventor： BLAKLEY ISAAC D
CPC classification number: B42F17/14
Abstract: THE BOTTOM OF A CARD FILE DRAWER CARRIES A U-SHAPED TRACK WHICH RECEIVES THE BASE OF THE CARD FOLLOWER ALLOWING THE CARD FOLLOWER TO SLIDE THEREIN. THE TRACK INCLUDES A SERIES OF UPSTRUCK, INCLINED DETENTS. A DEPENDING TAB FROM THE FOLLOWER BASE CONTACTS THE UPSTRUCK DETENTS SO AS TO READILY SLIDE OVER THE INCLINED SURFACES IN ONE DIRECTION BUT IS FULLY RESTRAINED IN THE OPPOSITE DIRECTION.
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