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发明名称
Diaphragme de source lumineuse
摘要
申请公布号
FR937925(A)
申请公布日期
1948.08.31
申请号
FRD937925
申请日期
1946.11.21
申请人
发明人
PAOUR MAURICE
分类号
G03B9/07
主分类号
G03B9/07
代理机构
代理人
主权项
地址
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