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经营范围
发明名称
Lamelle pour obturateur d'objectifs photographiques
摘要
申请公布号
FR818933(A)
申请公布日期
1937.10.06
申请号
FRD818933
申请日期
1937.03.08
申请人
GEBRU:DER JUNGHANS A.-G.
发明人
分类号
G03B9/22
主分类号
G03B9/22
代理机构
代理人
主权项
地址
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