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发明名称
Process for preparing chemically active artificial asphalts
摘要
申请公布号
US2086064(A)
申请公布日期
1937.07.06
申请号
US19350056837
申请日期
1935.12.30
申请人
BENEDICT CARPZOW JOHANNES
发明人
CARPZOW JOHANNES BENEDICT
分类号
C10C3/02
主分类号
C10C3/02
代理机构
代理人
主权项
地址
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