Bookkeeping apparatus

Claim 1

BOOKKEEPING APPARATUS COMPRISING A PLURALITY OF GENERALLY RECTANGULAR FORMS ARRANGED IN A FANNED STACK WITH THEIR END EDGES ALIGNED AND WITH THE UPPER SIDE EDGE OF EACH FORM POSITIONED A PREDETERMINED DISTANCE UPWARDLY BEYOND THE UPPER SIDE EDGE OF THE ADJACENT OVERLYING FORM, A BINDER INCLUDING TWO VERTICAL ROWS OF SPACED HOLDING ELEMENTS, TWO GENERALLY RECTANGULAR RECORD SHEETS EACH INCLUDING TWO VERTICAL FOLD LINES DIVIDING THE SAME INTO FIRST, SECOND AND THIRD SIDE-BY-SIDE PANELS WHICH ARE FOLDABLE RELATIVE TO ONE ANOTHER, EACH RECORD SHEET HAVING A SET OF OPENINGS ALONG THE FREE VERTICAL EDGE OF ITS FIRST PANEL FOR RECEIVING THE HOLDING ELEMENTS OF ONE OF SAID VERTICAL ROWS AND ALSO HAVING TWO OTHER SIMILAR SETS OF OPENINGS LOCATED WITH ONE SET ON EITHER SIDE OF THE FOLD LINE SEPARATING SAID SECOND AND THIRD PANELS FOR RECEIVING THE HOLDING ELEMENTS OF THE OTHER OF SAID VERTICAL ROWS, SAID TWO ROWS OF HOLDING ELEMENTS AND SAID OPENINGS IN SAID RECORD SHEETS BEING SO ARRANGED THAT WHEN ONE RECORD SHEET IS ATTACHED TO SAID ONE ROW OF HOLDING ELEMENTS WITH THE THIRD PANEL THEREOF FOLDED OVER SAID SECOND PANEL AND THE OTHER RECORD SHEET IS ATTACHED TO SAID SECOND ROW OF HOLDING ELEMENTS WITH SAID THIRD PANEL FOLDED UNDER SAID SECOND PANEL SAID OTHER RECORD SHEET IS LOCATED IN CLOSE SIDE-BY-SIDE AND VERTICALLY ALIGNED RELATION TO SAID ONE RECORD SHEET SO AS TO ESSENTIALLY FORM A CONTINUATION OF THE LATTER, SAID FORMS ALSO INCLUDING OPENINGS ALONG ONE EDGE THEREOF FOR RECEIVING SAID HOLDING ELEMENTS OF SAID ONE ROW TO HOLD SAID FORMS IN OVERLYING RELATIONSHIP WITH SAID ONE RECORD SHEET, SAID ONE RECORD SHEET BEING FOLDABLE ALONG ITS FOLD LINES TO BRING ANY ONE OF THREE PANEL SURFACES INTO IMMDEIATELY UNDERLYING RELATIONSHIP WITH SAID FORMS, AND TRANSFER MEANS FOR CAUSING WRITTEN ENTRIES MADE ON SAID VERTICALLY SPACED LINES OF SAID FORMS TO BE DUPLICATED ON THE IMMEDIATELY UNDERLYING PANEL SURFACE.