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经营范围
发明名称
Return bend for cracking stills
摘要
申请公布号
US1958906(A)
申请公布日期
1934.05.15
申请号
US19330653394
申请日期
1933.01.25
申请人
FRED C. FANTZ
发明人
ARD CHARLES E.
分类号
C10G9/00
主分类号
C10G9/00
代理机构
代理人
主权项
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