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经营范围
发明名称
LIFTING DEVICE FOR PERCUSSION DRILLING CUTTINGS
摘要
申请公布号
ZA7003966(B)
申请公布日期
1971.02.24
申请号
ZA19700003966
申请日期
1970.06.10
申请人
TRIDENT IND INC
发明人
BARDWELL A
分类号
B25D
主分类号
B25D
代理机构
代理人
主权项
地址
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