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发明名称
VENTED ROOF SYSTEMS EMPLOYING MICROPOROUS MEMBRANES
摘要
申请公布号
US3598688(A)
申请公布日期
1971.08.10
申请号
USD3598688
申请日期
1968.08.26
申请人
SELBY BATTERSBY & CO.
发明人
ROBERT G. BELLAMY
分类号
E04D5/12;E04D13/17;(IPC1-7):D06N5/00
主分类号
E04D5/12
代理机构
代理人
主权项
地址
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