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发明名称
Dispositif de fixation de la calotte d'aération sur les casques en liège ou similaires
摘要
申请公布号
FR835560(A)
申请公布日期
1938.12.26
申请号
FRD835560
申请日期
1938.03.22
申请人
发明人
BONNEFOY GILBERT
分类号
A42C5/04
主分类号
A42C5/04
代理机构
代理人
主权项
地址
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