Title:
SEPARATING AND LIFTING OF SOIL AND SAND
Document Type and Number:
Japanese Patent JPS58101993
Kind Code:
A
Inventors:
YOSHIKAWA TADAO
HIRATA SHIYOUZOU
HIRATA SHIYOUZOU
Application Number:
JP19988781A
Publication Date:
June 17, 1983
Filing Date:
December 10, 1981
Export Citation:
Assignee:
HITACHI SHIPBUILDING ENG CO
International Classes:
E02F3/94; B03B5/00; E02F3/06; E21B3/00; E21B7/00; E21B12/06; E21B17/22; (IPC1-7): B03B5/00; E02F3/06; E21B3/00
Attorney, Agent or Firm:
Yoshihiro Morimoto