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发明名称
Liquid sampler
摘要
申请公布号
US2111982(A)
申请公布日期
1938.03.22
申请号
US19370153041
申请日期
1937.07.10
申请人
MASON JR ARTHUR J
发明人
JR. ARTHUR J. MASON,
分类号
E21B49/08
主分类号
E21B49/08
代理机构
代理人
主权项
地址
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