Improvements in or relating to moulding compositions for gramophone records and the records thus produced,申请号GB19490013011-传众专利搜索

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发明名称	Improvements in or relating to moulding compositions for gramophone records and the records thus produced
摘要
申请公布号	GB664954(A)	申请公布日期	1952.01.16
申请号	GB19490013011	申请日期	1949.05.16
申请人	NAAMLOOZE VENNOOTSCHAP DE BATAAFSCHE PETROLEUM MAATSCHAPPIJ	发明人
分类号	C08K5/01;G11B3/70	主分类号	C08K5/01
代理机构		代理人
主权项
地址

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