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发明名称
摘要
申请公布号
FR2296866(B1)
申请公布日期
1977.12.16
申请号
FR19750025151
申请日期
1975.08.07
申请人
IBM
发明人
分类号
H03M1/74;G02B6/122;G02F1/095;G02F7/00;H03M1/00
主分类号
H03M1/74
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代理人
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地址
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