Memory game having rotatable disc means for varying the symbols displayed

Claim 1

A GAME APPARATUS COMPRISING A BOARD HAVING A PLURALITY OF WINDOW OPENINGS THEREIN ARRANGED IN CONCENTRIC CIRCLES, A DISC MOUNTED BELOW SAID BOARD FOR ROTATION ABOUT THE AXIS OF THE COMMON CENTER OF SAID CIRCLES, MEANS FOR SELECTIVELY LOCATING SAID DISC IN ANY ONE OF A PLURALITY OF DIFFERENT PREDETERMINED ANGULAR POSITIONS ABOUT SAID AXIS WITH RESPECT TO SAID BOARD, A MULTIPLICITY OF SYMBOLS ON SAID DISC INCLUDING A PLURALITY OF DIFFERENT SYMBOLS AND CONSISTING OF A PLURALITY OF SETS EACH CONSISTING OF THE SAME WHOLE NUMBER OF EQUAL NUMBERS OF MATCHING ONES OF THE SYMBOLS AND EACH SET HAVING SAID SYMBOLS IN A DIFFERENT RANDOM ARRANGEMENT, THE NUMBER OF SAID WINDOW OPENINGS BEING SAID EQUAL NUMBER TIMES THE NUMBER OF DIFFERENT SYMBOLS, SAID SYMBOLS OF EACH SET BEING POSITIONED TO REGISTER WITH SAID OPENINGS TO PRESENT DIFFERENT RANDOM LOCATIONS OF SAID DIFFERENT SYMBOLS IN EACH OF SAID ANGULAR POSITIONS WHEREBY THE SAME WHOLE NUMBER OF EQUAL NUMBERS OF MATCHED ONES OF SAID SYMBOLS IS IN REGISTER WITH SAID OPENINGS IN EACH POSITION OF SAID DISC, AND GAME PIECES FOR COVERING ALL OF SAID OPENINGS TO CONCEAL THE SYMBOLS REGISTERING THEREWITH.