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发明名称
摘要
申请公布号
JPS57115664(U)
申请公布日期
1982.07.17
申请号
JP19810197364U
申请日期
1981.12.29
申请人
发明人
分类号
B04B7/06;F16P3/08;(IPC1-7):B04B7/06
主分类号
B04B7/06
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代理人
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