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经营范围
发明名称
Multiple pipeline
摘要
申请公布号
US3336943(A)
申请公布日期
1967.08.22
申请号
US19640413203
申请日期
1964.11.23
申请人
ETHYL CORPORATION
发明人
ROBERTS GEORGE S.
分类号
F16L9/18
主分类号
F16L9/18
代理机构
代理人
主权项
地址
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