发明名称 |
AUTOMATIC TELEPHONE DIALLING DEVICE |
摘要 |
Device for automatically dialling stored telephone numbers for use in conjunction with a telephone handset. The device comprises a flat support consisting of two thin plates (8, 9). A disc-shaped acoustic transducer (2) operating at voice frequency and made of a resonating sheet, is inserted between said plates (8, 9), one of said plates having a cut out portion (at 10) located at the location of said sheet. The unit has a thin cross section (e) and can be made to the size of a credit card.
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申请公布号 |
WO9612368(A1) |
申请公布日期 |
1996.04.25 |
申请号 |
WO1994FR01205 |
申请日期 |
1994.10.18 |
申请人 |
FINTEL;GORETA, LUCAS;DUROUX, CHRISTIAN |
发明人 |
GORETA, LUCAS;DUROUX, CHRISTIAN |
分类号 |
H04M1/27;H04M;H04M1/274;H04M1/275;(IPC1-7):H04M1/274 |
主分类号 |
H04M1/27 |
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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