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发明名称
Method of and apparatus for dividing asphalt
摘要
申请公布号
US1939391(A)
申请公布日期
1933.12.12
申请号
US19300463331
申请日期
1930.06.23
申请人
STANDARD OIL DEVELOPMENT COMPANY
发明人
CURRAN ROY A.
分类号
C10C3/14
主分类号
C10C3/14
代理机构
代理人
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地址
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