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发明名称
Roofing and the like
摘要
申请公布号
US2249698(A)
申请公布日期
1941.07.15
申请号
US19410385681
申请日期
1941.03.28
申请人
REVERE COPPER AND BRASS INCORPORATED
发明人
WILKINS RICHARD A.
分类号
C22C9/00;E04D3/16
主分类号
C22C9/00
代理机构
代理人
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地址
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