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发明名称
摘要
申请公布号
JPS5713869(B2)
申请公布日期
1982.03.19
申请号
JP19770003873
申请日期
1977.01.17
申请人
发明人
分类号
G03B27/50;G03B27/62;G03G15/04
主分类号
G03B27/50
代理机构
代理人
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地址
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