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发明名称
Bohrkopf fuer Bergwerksgewinnungsmaschinen zum Abbau von Material ohne ausgepraegte Spaltbarkeit, insbesondere Kali und Pottasche
摘要
申请公布号
DE1296590(B)
申请公布日期
1969.06.04
申请号
DE196601S4178
申请日期
1966.06.07
申请人
SALEM TOOL COMPANY
发明人
L. KOZAR, JOSEPH
分类号
E21C25/10;E21C25/58
主分类号
E21C25/10
代理机构
代理人
主权项
地址
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