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经营范围
发明名称
Radiographic apparatus
摘要
申请公布号
US1938455(A)
申请公布日期
1933.12.05
申请号
US19250030012
申请日期
1925.05.13
申请人
THE KELLEY-KOETT MANUFACTURING COMPANY
发明人
KELLEY JOHN ROBERT
分类号
G03B42/02
主分类号
G03B42/02
代理机构
代理人
主权项
地址
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