发明授权
US3627600A Process of fastening plastic or elastic sheets 失效
塑料或弹性片的加工过程

Process of fastening plastic or elastic sheets
摘要:
Flexible plastic or elastic sheets having marginal interlocking portions of longitudinally extending projections and channels are fastened together by progressively mating the sheets with a slide fastener so that the projections of one sheet fit into the channels of another while concurrently exuding a cement into the portion being mated.
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