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经营范围
发明名称
Psychological test machine
摘要
申请公布号
US1929872(A)
申请公布日期
1933.10.10
申请号
US19310573219
申请日期
1931.11.05
申请人
LAVERY HENRY C;WHITE FRANK P
发明人
LAVERY HENRY C.;WHITE FRANK P.
分类号
主分类号
代理机构
代理人
主权项
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