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发明名称
Фотоэлектрический экспозиметр
摘要
申请公布号
SU80687(A1)
申请公布日期
1948.11.30
申请号
SU19480382998
申请日期
1948.08.17
申请人
PELL V.G.
发明人
PELL V.G.
分类号
G01J1/00;G01J1/04;G03B7/14
主分类号
G01J1/00
代理机构
代理人
主权项
地址
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