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经营范围
发明名称
Gesteinsschlagbohrer mit Hartmetalleinsaetzen
摘要
申请公布号
DE856589(C)
申请公布日期
1952.11.24
申请号
DE1942M004411D
申请日期
1942.12.15
申请人
WALLRAM HARTMETALLWERK;HARTMETALLWERKZEUGFABRIK MEUTSCH
发明人
分类号
E21B10/58
主分类号
E21B10/58
代理机构
代理人
主权项
地址
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