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发明名称
摘要
申请公布号
JPS4320590(Y1)
申请公布日期
1968.08.30
申请号
JP19650030374U
申请日期
1965.04.16
申请人
发明人
分类号
E03D1/00;E03D3/00;(IPC1-7):E03D3/00
主分类号
E03D1/00
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代理人
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