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发明名称
摘要
申请公布号
JPS428288(Y1)
申请公布日期
1967.04.27
申请号
JP19640059888U
申请日期
1964.07.25
申请人
发明人
分类号
E02B7/40;(IPC1-7):E02B7/40
主分类号
E02B7/40
代理机构
代理人
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地址
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