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发明名称
Machine à sonder ou à forer
摘要
申请公布号
FR798508(A)
申请公布日期
1936.05.19
申请号
FRD798508
申请日期
1935.02.18
申请人
发明人
CHOPIN ALBERIC
分类号
E21B6/00;E21B25/00
主分类号
E21B6/00
代理机构
代理人
主权项
地址
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