An improved annular-gap magnet system,申请号GB19520002628-传众专利搜索

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发明名称	An improved annular-gap magnet system
摘要
申请公布号	GB700961(A)	申请公布日期	1953.12.16
申请号	GB19520002628	申请日期	1952.01.31
申请人	GEBR. BOEHLER & CO. AKTIENGESELLSCHAFT	发明人
分类号	H04R9/02	主分类号	H04R9/02
代理机构		代理人
主权项
地址

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