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发明名称
摘要
申请公布号	JPS6223540(B2)	申请公布日期	1987.05.23
申请号	JP19810026010	申请日期	1981.02.24
申请人	NIPPON TELEGRAPH & TELEPHONE	发明人	YAMAMOTO KATSUHIKO;SUGIURA TOSHUKI;MATSUI ATSUO
分类号	H02M3/28;H02M3/338	主分类号	H02M3/28
代理机构		代理人
主权项
地址

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