1. Keyboard the keys (22) of which are mounted on a printed circuit board (23), characterized in that below the printed circuit board (23) there is provided a foamed plastic molded body (27) which supports the printed circuit board (23) without any further supporting elements and over almost its entire surface against flexure due to key operations.
申请公布号
DE3360872(D1)
申请公布日期
1985.10.31
申请号
DE19833360872
申请日期
1983.04.13
申请人
STANDARD TELEPHON UND RADIO AG;INTERNATIONAL STANDARD ELECTRIC CORPORATION
发明人
FREY, WERNER URS;ROMETSCH, JOHANNES;ISELI, KARL;WILD, PETER
