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发明名称
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摘要
申请公布号
JPS5629223(A)
申请公布日期
1981.03.24
申请号
JP19790104445
申请日期
1979.08.16
申请人
SONY CORP
发明人
YANAGISAWA GEN
分类号
G03B21/00;G02B27/18;G03B21/56
主分类号
G03B21/00
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