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发明名称
FLUID FLOW APPARATUS
摘要
申请公布号
US3572776(A)
申请公布日期
1971.03.30
申请号
USD3572776
申请日期
1969.02.27
申请人
ROCKWELL MFG. CO.
发明人
DAVID P. HERD;CHARLES D. MORRILL
分类号
E21B43/01;F16L27/12;F16L37/00;(IPC1-7):F16L15/02
主分类号
E21B43/01
代理机构
代理人
主权项
地址
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