Improvements in and relating to sound film printing apparatus,申请号GB19300021064-传众专利搜索

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发明名称	Improvements in and relating to sound film printing apparatus
摘要
申请公布号	GB360844(A)	申请公布日期	1931.11.11
申请号	GB19300021064	申请日期	1930.07.11
申请人	THE BRITISH THOMSON-HOUSTON COMPANY LIMITED;KENNETH JOHN RALLINGS COCKE	发明人
分类号	G11B7/28	主分类号	G11B7/28
代理机构		代理人
主权项
地址

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