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经营范围
发明名称
SANDWICH PIPE
摘要
申请公布号
US3474834(A)
申请公布日期
1969.10.28
申请号
USD3474834
申请日期
1966.02.08
申请人
SHELL OIL CO.
发明人
JAMES E. CAREY
分类号
F16L9/00;F16L9/14;F16L21/02;F16L21/05;F16L25/00;(IPC1-7):F16J15/00;F16L13/14
主分类号
F16L9/00
代理机构
代理人
主权项
地址
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