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发明名称
APPARATUS FOR PREVENTION OF SHAFT SEAL DEGRADATION
摘要
申请公布号
US3604056(A)
申请公布日期
1971.09.14
申请号
USD3604056
申请日期
1969.06.02
申请人
CONWED CORP.
发明人
RONALD L. LARSEN
分类号
B29C47/12;B29C47/80;(IPC1-7):B29F3/01;F16J15/16
主分类号
B29C47/12
代理机构
代理人
主权项
地址
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