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发明名称
DYNAMIC SEAL
摘要
申请公布号
PL128963(B1)
申请公布日期
1984.03.31
申请号
PL19770203426
申请日期
1977.12.28
申请人
发明人
分类号
F16J;F16J1/02;F16J9/00;(IPC1-7):F16J9/00
主分类号
F16J
代理机构
代理人
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地址
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