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发明名称
Improvements in and relating to x-ray dental photographing apparatus
摘要
申请公布号
GB539110(A)
申请公布日期
1941.08.28
申请号
GB19400001535
申请日期
1940.01.25
申请人
KURT RIESENFELD
发明人
分类号
G03B42/04
主分类号
G03B42/04
代理机构
代理人
主权项
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