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发明名称
Procédé et dispositif pour limiter la force ascensionnelle d'un flotteur noyé contenant une masse liquide communiquant avec l'extérieur
摘要
申请公布号
FR870838(A)
申请公布日期
1942.03.25
申请号
FRD870838
申请日期
1941.03.15
申请人
发明人
RYSDYK FRANK
分类号
F16K33/00
主分类号
F16K33/00
代理机构
代理人
主权项
地址
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