Neck forming device for making acoustic diaphragms,申请号GB19570011137-传众专利搜索

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发明名称	Neck forming device for making acoustic diaphragms
摘要
申请公布号	GB816265(A)	申请公布日期	1959.07.08
申请号	GB19570011137	申请日期	1957.04.05
申请人	HAWLEY PRODUCTS COMPANY	发明人	KYLE COLIN
分类号	G10K13/00	主分类号	G10K13/00
代理机构		代理人
主权项
地址

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