72324035
Apr 9, 1969
Dec 21, 1971
HAND FILING CARD INDEX SYSTEM, NOT UTILIZING ELECTRICAL OR ELECTRONIC COMPONENT, BUILT UP OF NOTCHED FLEXIBLE PAPER CARDS, PLASTIC CARDHANGERS, PLASTIC PERFORATED TABS, SELECTION NEEDLE, SELECTION FRAME AND STEEL FILE CASES AND DRAWERS FOR FILING OF THE CARDS
Building Construction and Repair