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经营范围
发明名称
Process of cracking and coking
摘要
申请公布号
US1864686(A)
申请公布日期
1932.06.28
申请号
US19300432910
申请日期
1930.03.08
申请人
FIELDS JOHN D
发明人
FIELDS JOHN D.
分类号
C10G9/00
主分类号
C10G9/00
代理机构
代理人
主权项
地址
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