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发明名称
摘要
申请公布号
JPS4735127(U)
申请公布日期
1972.12.19
申请号
JP19710035740U
申请日期
1971.05.07
申请人
发明人
分类号
E04G25/00;E04G21/26;E04G25/06;(IPC1-7):E04G25/06
主分类号
E04G25/00
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代理人
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