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发明名称
摘要
申请公布号
JPS5254472(U)
申请公布日期
1977.04.19
申请号
JP19750141285U
申请日期
1975.10.17
申请人
发明人
分类号
A01F12/40;A01F12/00;A01F17/00;A01F21/00;(IPC1-7):A01F17/00
主分类号
A01F12/40
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