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发明名称
Dispositif de support amovible de lampes pour appareils de projection
摘要
申请公布号
FR853849(A)
申请公布日期
1940.03.29
申请号
FRD853849
申请日期
1938.11.17
申请人
SOCIETE DES TELEPHONES ERICSSON
发明人
分类号
G03B21/20
主分类号
G03B21/20
代理机构
代理人
主权项
地址
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