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发明名称
Nouveau dispositif pour éliminer les rayons calorifiques sur le parcours d'un faisceau lumineux
摘要
申请公布号
FR918058(A)
申请公布日期
1947.01.29
申请号
FRD918058
申请日期
1945.11.28
申请人
发明人
FORT MARIO
分类号
G03B21/16
主分类号
G03B21/16
代理机构
代理人
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