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发明名称
Hydraulisches Steinsprenggeraet
摘要
申请公布号
DE1254562(B)
申请公布日期
1967.11.23
申请号
DE1964D045056
申请日期
1964.07.28
申请人
HELMUT DARDA
发明人
DARDA HELMUT
分类号
E21C37/04
主分类号
E21C37/04
代理机构
代理人
主权项
地址
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