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发明名称
ASPHALT-RESIN-BLOCK COPOLYMER ROOFING COMPOSITIONS
摘要
申请公布号
CA740497(A)
申请公布日期
1966.08.09
申请号
CAD740497
申请日期
申请人
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ, N.V.
发明人
CARL L. NIELSEN
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主分类号
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