| 发明名称 |
VIBRATION PLATE FOR ACOUSTIC INSTRUMENT AND PRE PARATION THEREFOR |
| 摘要 |
PURPOSE:To make compact an acoustic instrument and broaden its play-back band as well as to improve sound quality produced therefrom by use of a vibration plate made of polypropylene (including copolymer and composite). |
| 申请公布号 |
JPS5324828(A) |
申请公布日期 |
1978.03.08 |
| 申请号 |
JP19760099139 |
申请日期 |
1976.08.18 |
| 申请人 |
MATSUSHITA ELECTRIC IND CO LTD |
发明人 |
YASHIRO MITSURU;MURATA KOUSAKU;TAKAYAMA SATOSHI;NAKAJIMA NOBUO |
| 分类号 |
H04R7/02;H04R31/00 |
主分类号 |
H04R7/02 |
| 代理机构 |
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代理人 |
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| 主权项 |
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| 地址 |
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