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发明名称
Improvements in or relating to photo-electric exposure meters
摘要
申请公布号
GB453913(A)
申请公布日期
1936.09.21
申请号
GB19360014231
申请日期
1935.03.19
申请人
METRAWATT AKTIENGESELLSCHAFT
发明人
分类号
G01J1/42
主分类号
G01J1/42
代理机构
代理人
主权项
地址
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