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发明名称
Asphalt roofing
摘要
申请公布号
US2804833(A)
申请公布日期
1957.09.03
申请号
US19560595130
申请日期
1956.07.02
申请人
THE PATENT AND LICENSING CORPORATION
发明人
BERRY G. WILLIAM;SCHMITT JOHN C.;SCHULZ JOSEPH F.
分类号
D06N5/00;D21J1/08
主分类号
D06N5/00
代理机构
代理人
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地址
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