International Business Machines Corporation

Robert O Norton

Fernand J Dorleans

Robert S Pokrzywa

A keying system for assuring the proper sequence or arrangement of cable cards within a card grouper is provided. The grouper includes a plurality of slots to receive the cable cards. The cards include tab means at at least one side thereof which can be selectively trimmed to one of several specific extension distances from the card. The grouper includes a template which has grooves configured to receive cards having their tabs programmed to one and only one configuration. Thus any given card, when programmed, will fit in only one location. The cards and grouper also include coacting surfaces to allow the appropriate card to be inserted in only one orientation in any given slot.

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Susquehanna, PA, United States of America

Robert O Norton