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发明名称
摘要
申请公布号
JPS5272721(U)
申请公布日期
1977.05.31
申请号
JP19750159710U
申请日期
1975.11.25
申请人
发明人
分类号
B65H75/42;H04N5/64;H04R1/10;(IPC1-7):H04R1/10;H02G1/18
主分类号
B65H75/42
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