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发明名称
摘要
申请公布号
JPS5644426(B2)
申请公布日期
1981.10.19
申请号
JP19730113168
申请日期
1973.10.08
申请人
发明人
分类号
G03G15/10;G03C5/56;G03D13/00;G11B7/00;G11B7/003
主分类号
G03G15/10
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