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发明名称
摘要
申请公布号
JPS49104893(U)
申请公布日期
1974.09.09
申请号
JP19720005016U
申请日期
1972.12.29
申请人
发明人
分类号
E02B15/00;B63B35/32;C02F1/40;(IPC1-7):B63B35/32
主分类号
E02B15/00
代理机构
代理人
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