专利名称：Package forming web folder发明人：Keith C. Koch申请号：US06/247109申请日：19810324公开号：US04494362A公开日：19850122
摘要：A travelling web made of packaging film is folded about collated sheets ofmaterial in response to a reversal in travel direction of the web about an arrangement ofthree guide edge segments. Two of the guide edge segments on either side of theintermediate guide edge segment form parts of two triangular folding guide membersthrough which the web is folded into transversely overlapping portions overlying anintermediate portion reversed in travel direction by the intermediate guide segment.
申请人：METROMAIL, INC.
代理人：Harvey B. Jacobson
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