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发明名称
摘要
申请公布号
DE2030729(A1)
申请公布日期
1971.01.07
申请号
DE19702030729
申请日期
1970.06.23
申请人
发明人
分类号
G03H1/10;(IPC1-7):G03C9/00
主分类号
G03H1/10
代理机构
代理人
主权项
地址
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