Thickness-adjustable bookkeeping voucher corner with cover
A technology for thickness adjustment and accounting vouchers, applied in book binding, book cover, printing, etc., can solve the problems of difficult to find forged original vouchers, no tight packaging of corners, and inability to adjust the thickness of corners.
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[0018] The invention relates to a thickness-adjustable cover angle of an accounting voucher, such as figure 1 — Figure 10As shown, it is characterized in that it includes a cover 1, the cover 1 is connected to the corner body 2, and the corner body includes a corner piece, a connecting piece and a central stopper 5, and the corner piece includes a first bag Corner sheet 31, the second corner sheet 32, the third corner sheet 33 and the fourth corner sheet 34, the first, second, third and fourth corner sheets are rectangles with the same area, and the The connecting piece includes a first connecting piece 41 and a second connecting piece 42, the first and second connecting pieces are triangles with the same area, and the inner surface of the corner-wrapped body 2 is formed with a plurality of cutting lines a, b, c , d, e and fold line indentations m, a1, b1, c1, d1, e1. The wrapping angle of the accounting voucher of the present invention with a thickness-adjustable joint cov...
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