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发明名称
摘要
申请公布号
JPS5536589(B2)
申请公布日期
1980.09.22
申请号
JP19770068568
申请日期
1977.06.09
申请人
发明人
分类号
H01F41/06;B65H51/26;B65H54/10;B65H67/048;H01C17/04
主分类号
H01F41/06
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