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发明名称
PNEUMATIC IMPACT TYPE EXCAVATOR
摘要
申请公布号
JPS63122884(A)
申请公布日期
1988.05.26
申请号
JP19860268758
申请日期
1986.11.13
申请人
MITSUBISHI HEAVY IND LTD
发明人
NAGATOMO KUNIYASU;NOTOMI TAKETOSHI;OKAZAKI KAZUO
分类号
E21B7/26
主分类号
E21B7/26
代理机构
代理人
主权项
地址
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