Contact and coding arrangement for plug and coded card - includes reading and writing appts. and has eg telephone card with microchips for insertion into electrical housing

摘要

The contact arrangement includes a battery housing with the same poles interconnected. The housing may include images showing battery polarity so that batteries will not be entered upside down. The normally rectangular housing can also be in cubic form. The contact arrangement can be used for a telephone card with six contacts. The contact rings are the same size on both sides of the card and are connected to each other electrically. A microchip is placed on each contact, and the card can be placed in its receptacle independent of its orientation. USE/ADVANTAGE - For telephone cards, cheque cards, credit cards, etc. Quick connection.