作者: Stuart Karten , Dennis Schroeder , Paul Kirley
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摘要: An improved binder formed of two cover portions made rigid material joined together with a living hinge is disclosed. A closure flap second joins the free ends opposite spine. method attaching pocket to also The use such technique on polypropylene allows roll feeding materials, eliminates need for chipboard, existing printing and sealing machinery be employed in manufacture binder, provides durability aesthetics at low cost. One portion may adapted number design features properly align one relative other portion. coupled portions.