System of television,申请号US19280324078-传众专利搜索

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发明名称	System of television
摘要
申请公布号	US1867542(A)	申请公布日期	1932.07.12
申请号	US19280324078	申请日期	1928.12.06
申请人	HAMMOND JR JOHN HAYS	发明人	JR. JOHN HAYS HAMMOND,
分类号	H04N5/782	主分类号	H04N5/782
代理机构		代理人
主权项
地址

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