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发明名称
Explosionssperre fuer den Bergbau
摘要
申请公布号
DE1533804(A1)
申请公布日期
1970.01.15
申请号
DE19671533804
申请日期
1967.06.01
申请人
MEININGHAUS,DR.-ING. FRITZ
发明人
FRITZ MEININGHAUS,DR.-ING.
分类号
E21F5/14
主分类号
E21F5/14
代理机构
代理人
主权项
地址
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