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发明名称
SEAL MECHANISM
摘要
申请公布号
JPH06108796(A)
申请公布日期
1994.04.19
申请号
JP19920037051
申请日期
1992.01.28
申请人
MITSUI CONSTR CO LTD
发明人
SUZUKI AKIHIKO
分类号
E21D11/38;(IPC1-7):E21D11/38
主分类号
E21D11/38
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代理人
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