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经营范围
发明名称
MAGNETIC FILM
摘要
申请公布号
JPH02215106(A)
申请公布日期
1990.08.28
申请号
JP19890035667
申请日期
1989.02.15
申请人
RICOH CO LTD
发明人
KATSURAGAWA TADAO
分类号
C01B21/06;C03C17/22;C23C14/06;C23C16/34;G11B5/64;G11B5/65;G11B5/66;G11B11/10;G11B11/105;H01F10/18
主分类号
C01B21/06
代理机构
代理人
主权项
地址
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