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经营范围
发明名称
HYDROGRAPHIC SAMPLING DEVICE
摘要
申请公布号
US3509772(A)
申请公布日期
1970.05.05
申请号
USD3509772
申请日期
1968.05.22
申请人
ALEXANDER E. BLAIR
发明人
ALEXANDER E. BLAIR
分类号
E21B49/02;(IPC1-7):G01N1/04
主分类号
E21B49/02
代理机构
代理人
主权项
地址
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