DIAPHRAGM HORN,申请号CAD378229-传众专利搜索

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发明名称	DIAPHRAGM HORN
摘要
申请公布号	CA378229(A)	申请公布日期	1938.12.13
申请号	CAD378229	申请日期
申请人	CANADIAN WESTINGHOUSE COMPANY	发明人	SIDNEY G. DOWN
分类号		主分类号
代理机构		代理人
主权项
地址

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