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经营范围
发明名称
Exposure meter
摘要
申请公布号
US2117734(A)
申请公布日期
1938.05.17
申请号
US19350053313
申请日期
1935.12.07
申请人
ERNST LEITZ, G.M.B.H.
发明人
LEITZ LUDWIG
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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Positionskod
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