Accounting systems

Claim 1

IN AN ACCOUNTING SYSTEM, A BOOKLET HAVING FRONT AND BACK COVERS AND A SET OF LEAVES BOUND THEREBETWEEN, SAID LEAVES FORMING PAGES HAVING PRINTED MATTER AND BLANK SPACES FOR RECORDING OF EXPENSES, EACH OF SAID COVERS HAVING AN INNER EDGE WHERE SAID LEAVES ARE BOUND, AN OUTER EDGE OPPOSITE FROM SAID INNER EDGE, AND A PAIR OF SIDE EDGES SPACED APART BY A LONGITUDINAL DIMENSION OF THE COVER, A POCKET FOR EXPENSE SUBSTANTIATING RECEIPTS INTEGRALLY HINGED TO THE OUTER EDGE OF THE BACK COVER AND SUPERPOSED ON THE FRONT COVER WHEN THE BOOKLET IS CLOSED, SAID POCKET HAVING A PAIR OF FREE SIDE EDGES AND A FREE OUTER EDGE AND BEING OPEN IN THE DIRECTION OF THE OUTER EDGE OF SAID BACK COVER, THE POCKET BEING CONSTITUTED BY INNER AND OUTER POCKET FORMING WALLS SECURED TOGETHER ALONG THE SIDE AND OUTER EDGES OF THE POCKET, SAID SIDE EDGES OF THE POCKET BEING SPACED APART BY A LONGITUDINAL DIMENSION OF THE POCKET WHICH IS LESS THAN SAID LONGITUDINAL DIMENSION OF SAID COVERS AND THE SIDE EDGES OF THE POCKET BEING SPACED LONGITUDINALLY INWARDLY FROM THE SIDE EDGES OF THE COVERS SO THAT SIDE EDGE PORTIONS OF THE FRONT COVER PROJECT LONGITUDINALLY OUTWARDLY BEYOND THE SIDE EDGES OF THE POCKET WHEN THE POCKET IS SUPERPOSED ON THE FRONT COVER IN THE CLOSED POSITION OF THE BOOKLET, SAID FRONT COVER BEING PROVIDED WITH A PAIR OF DIAGONAL SLITS IN CORNER PORTIONS OF THE FRONT COVER DEFINED BY ITS INNER AND SIDE EDGES, A PAIR OF CORNER PORTIONS OF SAID POCKET DEFINED BY ITS INNER AND SIDE EDGES BEING REMOVABLY INSERTED IN SAID SLITS, AND A TONGUE STRUCK OUT FROM SAID FRONT COVER ADJACENT ITS INNER EDGE AND CENTRALLY BETWEEN ITS SIDE EDGES, SAID TONGUE OVERLYING SAID POCKET AND THE OUTER WALL OF THE POCKET BEING FORMED WITH A SLIT THROUGH WHICH THE TONGUE IS REMOVABLY INSERTED INTO THE POCKET, SAID COVER PORTIONS OF THE POCKET INSERTED IN SAID PAIR OF SLITS AND SAID TONGUE INSERTEE IN THE POCKET SLIT COACTING TO RELEASABLY RETAIN SAID POCKET IN ITS SUPERPOSED POSITION ON THE FRONT COVER WHEN THE BOOKLET IS CLOSED.