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发明名称
Process of making a solid bituminous hydrocarbon product
摘要
申请公布号
US2167250(A)
申请公布日期
1939.07.25
申请号
US19350046808
申请日期
1935.10.25
申请人
FRIEDRICH UHDE
发明人
PFIRRMANN THEODOR WILHELM
分类号
C10C3/08
主分类号
C10C3/08
代理机构
代理人
主权项
地址
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