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发明名称
Télémètre de jour et de nuit pour appareil photographique
摘要
申请公布号
FR929702(A)
申请公布日期
1948.01.06
申请号
FRD929702
申请日期
1945.12.15
申请人
THE KALART COMPANY, INC.
发明人
分类号
G03B13/20
主分类号
G03B13/20
代理机构
代理人
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