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经营范围
发明名称
Improvements in or relating to tubular x-ray diaphragms
摘要
申请公布号
GB654807(A)
申请公布日期
1951.06.27
申请号
GB19480030355
申请日期
1948.11.23
申请人
PHILIPS ELECTRICAL LIMITED
发明人
分类号
G21K1/06
主分类号
G21K1/06
代理机构
代理人
主权项
地址
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