首页> 外国专利> system of depression obtained by means of compressed air to lead the surface sand, gravel and other material that is located on the seabed river lake and the like

system of depression obtained by means of compressed air to lead the surface sand, gravel and other material that is located on the seabed river lake and the like

机译:通过压缩空气获得的凹陷系统,以导引位于海床河湖等上的表层砂,砾石和其他物质

摘要

机译:

著录项

  • 公开/公告号IT1005262B

    专利类型

  • 公开/公告日1976-08-20

    原文格式PDF

  • 申请/专利权人 GHEZZI SESTI S;

    申请/专利号IT19740002905

  • 发明设计人

    申请日1974-04-17

  • 分类号E02F;

  • 国家 IT

  • 入库时间 2022-08-23 02:39:47

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