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经营范围
发明名称
OXIDE SUPERCONDUCTOR
摘要
申请公布号
JPH02239118(A)
申请公布日期
1990.09.21
申请号
JP19890058801
申请日期
1989.03.10
申请人
RICOH CO LTD
发明人
YUZURIHARA HAJIME
分类号
C01G21/00;C01G1/00;H01B12/00;H01L39/12
主分类号
C01G21/00
代理机构
代理人
主权项
地址
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