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发明名称
HIGH-PURITY NIOBIUM COMPOUND AND PRODUCTION THEREOF
摘要
申请公布号
JPH0412026(A)
申请公布日期
1992.01.16
申请号
JP19900114518
申请日期
1990.04.27
申请人
NKK CORP
发明人
YOSHIKAWA HIROYASU;KOGA MIKIKO;UESUGI MOTOI;SAKATA NAOKI
分类号
C01G33/00
主分类号
C01G33/00
代理机构
代理人
主权项
地址
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