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经营范围
发明名称
Lamelle pour obturateurs photographiques, diaphragmes et analogues et procédé pour sa fabrication
摘要
申请公布号
FR1238666(A)
申请公布日期
1960.08.12
申请号
FR19590006769
申请日期
1959.10.14
申请人
发明人
BERNING HANS HEINRICH
分类号
G03B9/08
主分类号
G03B9/08
代理机构
代理人
主权项
地址
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