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发明名称
Schachtsignalvorrichtung
摘要
申请公布号
DE573099(C)
申请公布日期
1933.03.27
申请号
DE1931B152273D
申请日期
1931.09.29
申请人
RAYMOND MALCOLM DAVID BUTTON
发明人
分类号
B66B19/06
主分类号
B66B19/06
代理机构
代理人
主权项
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