Title:
【発明の名称】直流アーク炉の炉底電極
Document Type and Number:
Japanese Patent JP2993021
Kind Code:
B2
Inventors:
NAKATSUBO SHUICHI
NISHIMURA TSUKASA
NISHIMURA TSUKASA
Application Number:
JP32003389A
Publication Date:
December 20, 1999
Filing Date:
December 08, 1989
Export Citation:
Assignee:
DAIDO TOKUSHUKO KK
International Classes:
F27B3/08; F27D11/08; (IPC1-7): F27B3/08; F27D11/08
Domestic Patent References:
| JP604787A | ||||
| JP1167574A | ||||
| JP617560U |
Attorney, Agent or Firm:
Sou Suga