Machine for applying protective coatings to the marginal portions of gramophone discs,申请号US19540414405-传众专利搜索

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发明名称	Machine for applying protective coatings to the marginal portions of gramophone discs
摘要
申请公布号	US2771855(A)	申请公布日期	1956.11.27
申请号	US19540414405	申请日期	1954.03.05
申请人	GUNNAR THOWEMAN THORWALD GEORG	发明人	THOWEMAN THORWALD GEORG GUNNAR
分类号	G11B3/70	主分类号	G11B3/70
代理机构		代理人
主权项
地址

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