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发明名称
摘要
申请公布号
PL94334(B1)
申请公布日期
1977.07.30
申请号
PL19740176980
申请日期
1974.12.30
申请人
发明人
分类号
G03G5/10;(IPC1-7):G03G5/10
主分类号
G03G5/10
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代理人
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地址
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