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发明名称
Bituminous composition
摘要
申请公布号
US2289229(A)
申请公布日期
1942.07.07
申请号
US19380200450
申请日期
1938.04.06
申请人
HERCULES POWDER COMPANY
发明人
WIGGAM DAVID R.
分类号
C08L95/00
主分类号
C08L95/00
代理机构
代理人
主权项
地址
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