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Improvements to the sheets is not subject to shrinkage as well as the cellular fibres made impermeable to water and their method of manufacturing

机译：片材的改进不会收缩，蜂窝状纤维不透水，其制造方法也不会收缩

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公开/公告号FR821840A

专利类型
公开/公告日1937-12-14

原文格式PDF
申请/专利权人 AMERICAN REENFORCED PAPER COMPANY;
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申请/专利号FRD821840
发明设计人
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申请日1937-05-13
分类号B27K3/50;D21H11/20;
国家 FR
入库时间 2022-08-24 05:24:59

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