Improvements in or relating to apparatus for effecting optical recording and reproducing of sound or other variations,申请号GB19300007773-传众专利搜索

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发明名称	Improvements in or relating to apparatus for effecting optical recording and reproducing of sound or other variations
摘要
申请公布号	GB350531(A)	申请公布日期	1931.06.10
申请号	GB19300007773	申请日期	1930.03.10
申请人	SOMA PRISNER;EUGENE WENDER	发明人
分类号	G11B7/00	主分类号	G11B7/00
代理机构		代理人
主权项
地址

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