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发明名称
Dispositif de fermeture étanche et démontable pour corps creux cylindriques et sonapplication aux projecteurs de grand diamètre
摘要
申请公布号
FR1151521(A)
申请公布日期
1958.01.31
申请号
FRD1151521
申请日期
1956.04.11
申请人
MAISON BREGUET
发明人
分类号
F21V17/00;F21V17/16
主分类号
F21V17/00
代理机构
代理人
主权项
地址
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