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经营范围
发明名称
MAGNETIC POWDER MANUFACTURING PROCESS
摘要
申请公布号
JPS5387961(A)
申请公布日期
1978.08.02
申请号
JP19770002201
申请日期
1977.01.12
申请人
SONY CORP
发明人
WATANABE HARUO;TAMURA HIDEO;NAKAMURA TOKIO
分类号
B22F9/30;B22F1/02;H01F1/06;H01F1/11
主分类号
B22F9/30
代理机构
代理人
主权项
地址
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