E02F3/04- Dredgers Soil-shifting machines mechanically-driven.E02F3/00- Dredgers Soil-shifting machines.E02- HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING.Assignors: OIKAWA, SENJI Application granted granted Critical Publication of US6189243B1 publication Critical patent/US6189243B1/en Anticipated expiration legal-status Critical Status Expired - Fee Related legal-status Critical Current Links ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). reassignment MOBURON DESIGN OFFICE CO., LTD. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) Filing date Publication date Priority claimed from JP8-327482 external-priority Application filed by Moburon Design Office Co Ltd filed Critical Moburon Design Office Co Ltd Assigned to MOBURON DESIGN OFFICE CO., LTD. Original Assignee Moburon Design Office Co Ltd Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.) Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Fee Related Application number US09/297,325 Inventor Senji Oikawa Current Assignee (The listed assignees may be inaccurate. Google Patents Dredging method and dredging apparatusĭownload PDF Info Publication number US6189243B1 US6189243B1 US09/297,325 US29732599A US6189243B1 US 6189243 B1 US6189243 B1 US 6189243B1 US 29732599 A US29732599 A US 29732599A US 6189243 B1 US6189243 B1 US 6189243B1 Authority US United States Prior art keywords water case float suction pipe pump Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. Google Patents US6189243B1 - Dredging method and dredging apparatus US6189243B1 - Dredging method and dredging apparatus
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