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发明名称
Flotteur hélicoïdal étanche
摘要
申请公布号
FR1351408(A)
申请公布日期
1964.02.07
申请号
FR19620907570
申请日期
1962.08.23
申请人
发明人
JUSTINIEN MARCEL
分类号
B63H1/38
主分类号
B63H1/38
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代理人
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