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经营范围
发明名称
Perfectionnements apportés aux moyens pour assurer la fermeture étanche d'un orifice, notamment à ceux à faire comporter aux trappes pour coques d'hydravions
摘要
申请公布号
FR740431(A)
申请公布日期
1933.01.26
申请号
FRD740431
申请日期
1932.07.23
申请人
SOCIETE PROVENCALE DE CONSTRUCTIONS AERONAUTIQUES
发明人
分类号
B64C35/00
主分类号
B64C35/00
代理机构
代理人
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