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发明名称
Dispositif de protection contre l'incendie pour appareils de projection cinématographique
摘要
申请公布号
FR850681(A)
申请公布日期
1939.12.22
申请号
FRD850681
申请日期
1939.02.22
申请人
ROBERT BOSCH GESELLSCHAFT MIT BESCHRANKTER HAFTUNG
发明人
分类号
G03B21/18
主分类号
G03B21/18
代理机构
代理人
主权项
地址
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