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发明名称
Chemical testing device
摘要
申请公布号
US2434942(A)
申请公布日期
1948.01.27
申请号
US19460664444
申请日期
1946.04.24
申请人
WILLIAM MAGEE JOSEPH
发明人
MAGEE JOSEPH WILLIAM
分类号
G01N31/22
主分类号
G01N31/22
代理机构
代理人
主权项
地址
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