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发明名称
Dispositif indicateur de la position du tube de succion d'une drague suceuse
摘要
申请公布号
FR932466(A)
申请公布日期
1948.03.23
申请号
FRD932466
申请日期
1946.08.20
申请人
L. SMIT & ZOON'S SCHEEPS-EN WERKTUIGBOUW N. V.
发明人
分类号
E02F3/90;E02F9/26
主分类号
E02F3/90
代理机构
代理人
主权项
地址
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