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发明名称
摘要
申请公布号
JPH0445844(U)
申请公布日期
1992.04.17
申请号
JP19900087475U
申请日期
1990.08.23
申请人
发明人
分类号
E04G1/36;(IPC1-7):E04G1/36
主分类号
E04G1/36
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代理人
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