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发明名称
摘要
申请公布号
JPH0226608(U)
申请公布日期
1990.02.21
申请号
JP19880102371U
申请日期
1988.08.03
申请人
发明人
分类号
E01C19/48;(IPC1-7):E01C19/48
主分类号
E01C19/48
代理机构
代理人
主权项
地址
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