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发明名称
Dispositif utilisé pour l'extraction en masse des dépôts immergés et procédé d'exploitation en continu s'y rapportant, plus particulièrement utilisé pour la correction du lit d'un fleuve
摘要
申请公布号
FR1333134(A)
申请公布日期
1963.07.26
申请号
FR19620900099
申请日期
1962.06.07
申请人
NIKEX NEHEZIPARI KUELKERESKEDELMI VALLALAT
发明人
分类号
E02F3/90;E02F3/92;E02F7/10
主分类号
E02F3/90
代理机构
代理人
主权项
地址
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