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发明名称
摘要
申请公布号
JPS4712039(U)
申请公布日期
1972.10.13
申请号
JP19710015060U
申请日期
1971.03.10
申请人
发明人
分类号
E04H1/12;A47K3/00;(IPC1-7):E04H1/12
主分类号
E04H1/12
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