发明授权
US4333566A Closure strip 失效
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Closure strip
摘要:
A multi-closure strip of generally flat, rigid, plastic closures which are joined in an elongated strip by sets of transversely spaced webs in which the webs have enlarged central portions terminating in reduced transverse widths at the junctures of the closures with the webs. Preferably, the central portion is symmetrically or equidistantly located lengthwise between the closures and is of a circular configuration.
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