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发明名称
摘要
申请公布号
CH34870(A4)
申请公布日期
1972.03.30
申请号
CHD34870D
申请日期
1970.01.12
申请人
发明人
分类号
G04B1/00;G04B13/00;G04B15/08;(IPC1-7):G04B19/20
主分类号
G04B1/00
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代理人
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