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发明名称
VENTING OF LINED PIPE
摘要
申请公布号
US3506039(A)
申请公布日期
1970.04.14
申请号
USD3506039
申请日期
1967.11.09
申请人
DOW CHEM. CO.:THE
发明人
LEE WALTER MARRIOTT
分类号
F16L9/18;F16L39/00;F16L55/07;F16L58/10;(IPC1-7):F16L9/18;F16L7/00
主分类号
F16L9/18
代理机构
代理人
主权项
地址
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