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发明名称
Dispositif de vision à distance par rayons calorifiques
摘要
申请公布号
FR1137251(A)
申请公布日期
1957.05.27
申请号
FRD1137251
申请日期
1949.05.21
申请人
发明人
FEVROT CHARLES-ROGER;BERTRAND GERARD-ANDRE-AUGUSTE
分类号
G02B23/12
主分类号
G02B23/12
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代理人
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