Sound and picture film matching means,申请号US19290345576-传众专利搜索

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发明名称	Sound and picture film matching means
摘要
申请公布号	US1824294(A)	申请公布日期	1931.09.22
申请号	US19290345576	申请日期	1929.03.08
申请人	OWENS DEVELOPMENT CORPORATION	发明人	OWENS FREEMAN H.
分类号	G03B31/00	主分类号	G03B31/00
代理机构		代理人
主权项
地址

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