Inventor
HIGASHIIRIKI NOBUHIRO
JP3 patents
Patents
3 patentsUS4353530AOct 12, 1982
Method and apparatus for automatically punching the tuyeres of a converter
NIPPON MINING CO9 citations68
US4303229ADec 1, 1981
Mechanical punching device for punching the tuyeres of a converter
NIPPON MINING CO3 citations57
US4389044AJun 21, 1983
Mechanical punching apparatus for copper smelting converter
NIPPON MINING CO1 citations47