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发明名称
摘要
申请公布号
JPS4217164(Y1)
申请公布日期
1967.10.03
申请号
JP19650075270U
申请日期
1965.09.14
申请人
发明人
分类号
E01F13/00;E01F13/02;E01F13/04;(IPC1-7):E01F13/00
主分类号
E01F13/00
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