SOUND SYSTEM WITH ENHANCED LOW FREQUENCY DISTRIBUTION,申请号USD3586783-传众专利搜索

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发明名称	SOUND SYSTEM WITH ENHANCED LOW FREQUENCY DISTRIBUTION
摘要
申请公布号	US3586783(A)	申请公布日期	1971.06.22
申请号	USD3586783	申请日期	1969.06.18
申请人	DAVID R. BRICKNER	发明人	DAVID R. BRICKNER
分类号	H04S3/00;(IPC1-7):H04R5/02	主分类号	H04S3/00
代理机构		代理人
主权项
地址

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