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发明名称
Selbsttaetige Vorschubvorrichtung fuer Gesteinsbohrhaemmer
摘要
申请公布号
DE667083(C)
申请公布日期
1938.11.03
申请号
DE1936M133127D
申请日期
1936.01.09
申请人
MASCHINENFABRIK HERMANN MEIER
发明人
分类号
E21B44/08
主分类号
E21B44/08
代理机构
代理人
主权项
地址
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