发明名称 Speaker front sheet
摘要 A speaker front sheet capable of providing a sound outlet structure well matched in finishing with a cabinet of the speaker is disclosed, wherein a plain gauze fabric (1) is bonded on the front surface of a perforated sheet (2) having a porosity greater than 30%, and an adhesive layer (3) is applied to the back surface of the perforated sheet (2). <IMAGE>
申请公布号 GB2249454(A) 申请公布日期 1992.05.06
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 主分类号 H04N5/64
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