Invention Grant
US4352583A Binders for telephone directories and like books and tamper proof lanyard suspension thereof 失效
用于电话簿和类似书籍的绑定器,以及防篡改的挂绳

Binders for telephone directories and like books and tamper proof
lanyard suspension thereof
Abstract:
This invention in general relates to improvements in telephone directory binders for telephone books used in public telephone facilities and like books, where the books and binders are subjected to hard use and often are the target of vandalism and theft; and to improvements in lanyards for hanging the binders, the securing thereof in the binders, and improved wall mounting members to secure the opposite ends of the lanyards on a wall or other surface, e.g., adjacent the public telephone.
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