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发明名称
WATER VAPOUR PERMEABLE FLEXIBLE SHEET MATERIALS
摘要
申请公布号
CA871220(A)
申请公布日期
1971.05.18
申请号
CAD871220
申请日期
申请人
PORVAIR LIMITED
发明人
VICTOR R. CUNNINGHAM;GEORGE S. HATHORN
分类号
主分类号
代理机构
代理人
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