摘要 |
<p>The invention concerns indexes of the type which are intended to be placed under a domestic telephone to provide a library of telephone numbers with easy access. The index has an outer housing with a slideable drawer which carries a stack of cards carrying the information, such as names, addresses and telephone numbers. The tray has a series of manual selection members, which are each engageable with a perforated tab on an associated card of the stack, irrespective of the position on the stack of that card. The selection members comprise bell cranks and magnetic means hold all cards other than that selected within the housing.</p> |