Improvements in or relating to motion picture films and method of affixing a sound track thereon,申请号GB19520004214-传众专利搜索

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发明名称	Improvements in or relating to motion picture films and method of affixing a sound track thereon
摘要
申请公布号	GB708977(A)	申请公布日期	1954.05.12
申请号	GB19520004214	申请日期	1952.02.18
申请人	INTERNATIONAL RESEARCH AND DEVELOPMENT CORPORATION	发明人	CAMRAS MARVIN
分类号	G11B5/633	主分类号	G11B5/633
代理机构		代理人
主权项
地址

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