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发明名称
摘要
申请公布号
JPS6243169(B2)
申请公布日期
1987.09.11
申请号
JP19790001192
申请日期
1979.01.09
申请人
RICOH KK
发明人
SAWABE KOSAKU
分类号
G03B17/00;G03B1/12;G03B17/42
主分类号
G03B17/00
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