Dual Stripe Magnetic Card
Original Publication Date: 1980-May-01
Included in the Prior Art Database: 2005-Feb-13
Record card 1 has identically located magnetic stripes 2 and 3 on its opposite faces. Identical data recorded on stripes 2 and 3 allows the card 1 to be presented to a slot reader 4 having a single read head 5 without concern for which card face is being presented to read head 5.