Title:
METHOD OF EXTRACTING MATTER TEMPORARILY BURIED IN GROUND
Document Type and Number:
Japanese Patent JPS5431902
Kind Code:
A
Inventors:
NAKAYAMA KATSUHIKO
Application Number:
JP9848877A
Publication Date:
March 09, 1979
Filing Date:
August 16, 1977
Export Citation:
Assignee:
OSAKA GAS CO LTD
International Classes:
E02D9/02; (IPC1-7): E02D9/02