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发明名称
VACUUM CLEANING METHOD OF MOLTEN METAL
摘要
申请公布号
JPH02104441(A)
申请公布日期
1990.04.17
申请号
JP19880252062
申请日期
1988.10.07
申请人
NKK CORP
发明人
ISHII TOSHIO;SUGIYAMA SHUNICHI;KIKUCHI YOSHITERU;MATSUNO HIDETOSHI
分类号
B22D1/00
主分类号
B22D1/00
代理机构
代理人
主权项
地址
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