Apparatus for the visible and audible presentation of information in a desired sequence

Claim 1

APPARATUS FOR THE VISIBLE AND AUDIBLE PRESENTATION OF INFORMATION COMPRISING, IN COMBINATION, PLURAL SEPARATE INFORMATION UNITS EACH COMPRISING A PAIR OF CARDS ARRANGED IN SURFACE-TO-SURFACE JUXTAPOSITION AND FORMED FOR CONJOINT EDGEWISE DISPLACEMENT AS A UNIT; ONE OF SAID CARDS HAVING INFORMATION THEREON IN THE FORM OF A PROJECTION SLIDE FOR OPTICAL PROJECTION OF SUCH INFORMATION; THE OTHER OF SAID CARDS HAVING INFORMATION MAGNETICALLY RECORDED THEREON AUDIBLE PRESENTATION OF ITS INFORMATION; EACH UNIT HAVING RESPECTIVE FIRST SCANNABLE FEATURES IDENTIFYING THE RESPECTIVE UNIT, AND RESPECTIVE SECOND SCANNABLE FEATURES DETERMINING THE NEXT INFORMATION UNIT TO BE PRESENTED; PRESENTATION MEANS OPERABLE TO SCAN THE INFORMATION ON A SELECTED UNIT POSITIONED THEREAT AND TO PRESENT THE INFORMATION THEREON VISIBLY AND AUDIBLY; UNIT SELECTOR MEANS COOPERABLE WITH SAID FIRST SCANNABLE FEATURES TO SELECT A UNIT FOR POSITIONING AT SAID PRESENTATION MEANS; CONTROL MEANS FOR SAID SELECTOR MEANS CONTROLLED BY SAID SECOND SCANNABLE FEATURES; AND SELECTIVELY OPERABLE MANUAL MEANS COOPERABLE WITH SAID SECOND SCANNABLE FEATURES TO PREDETERMINE THE CONTROL OF SAID CONTROL MEANS BY SAID SECOND SCANNABLE FEATURES.