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发明名称
COMPRESSED AIR INJECTION APPARATUS FOR BREAKING HARD MINERALS
摘要
申请公布号
GB1208365(A)
申请公布日期
1970.10.14
申请号
GB19680019705
申请日期
1968.04.25
申请人
MASCHINENFABRIK GLUCKAUF GUNTHER KLERNER
发明人
分类号
E21C37/14
主分类号
E21C37/14
代理机构
代理人
主权项
地址
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