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发明名称
Air sampling device
摘要
申请公布号
US2943490(A)
申请公布日期
1960.07.05
申请号
US19590793940
申请日期
1959.02.17
申请人
MELTON DONALD F
发明人
MELTON DONALD F.
分类号
G01N1/22
主分类号
G01N1/22
代理机构
代理人
主权项
地址
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