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经营范围
发明名称
X-ray exposure apparatus
摘要
申请公布号
US2196063(A)
申请公布日期
1940.04.02
申请号
US19390274755
申请日期
1939.05.20
申请人
JOSEPH ENGEL
发明人
ENGEL JOSEPH
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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