Document Type and Number:
Japanese Patent JPH0248325
Kind Code:
B2
Inventors:
SUKIMOTO OTONOBU
SATO AKINORI
OOKUBO KUNIO
SUDO MASAMI
OONEDA NOBORU
SATO AKINORI
OOKUBO KUNIO
SUDO MASAMI
OONEDA NOBORU
Application Number:
JP21897487A
Publication Date:
October 24, 1990
Filing Date:
August 31, 1987
Export Citation:
Assignee:
SHOWA ALUMINIUM CO LTD
International Classes:
B21C25/02
Next Patent: METHOD FOR REMOVING STICKY OIL SAND