发明名称 Speaker cover sheet
摘要 A speaker front sheet capable of providing a sound outlet structure well matched in finishing with a cabinet of an apparatus equipped with a speaker is disclosed, wherein a plain gauze fabric is bonded on the front surface of a perforated sheet having a porosity greater than 30% and an adhesive layer is applied to the back surface of the perforated sheet.
申请公布号 GB2249454(B) 申请公布日期 1994.08.31
申请号 GB19910022552 申请日期 1991.10.24
申请人 * MATSUSHITA ELECTRIC INDUSTRIAL CO LTD 发明人 TOMIO * SHIOTA;TOSHIHARU * HIKIDA
分类号 H04N5/64;H04R1/02;(IPC1-7):H04R1/02 主分类号 H04N5/64
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