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发明名称
摘要
申请公布号
DE2138046(A1)
申请公布日期
1972.03.16
申请号
DE19712138046
申请日期
1971.07.29
申请人
发明人
分类号
G21C11/08;G21C13/093;G21C15/12;(IPC1-7):E04H7/00
主分类号
G21C11/08
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代理人
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