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经营范围
发明名称
Testing apparatus
摘要
申请公布号
US2321769(A)
申请公布日期
1943.06.15
申请号
US19410425173
申请日期
1941.12.31
申请人
HENRY PERSSON
发明人
PERSSON HENRY
分类号
F42C21/00
主分类号
F42C21/00
代理机构
代理人
主权项
地址
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