Contact of a speaker disposed within a telephone station with a printed circuit board provided within the telephone station.

• 1. 在具有多个用户访问单元的中央电话局中确定空闲连接线的方法 [P] . 中国专利： CN1414813A . 2003-04-30
• 2. 用于压入配合到印刷电路板中的接触引脚和接触装置 [P] . 中国专利： CN110998978A . 2020-04-10
• 3. CONTACTING A SPEAKER LOCATED WITHIN A TELEPHONE STATION WITH A CIRCUIT PROVIDED WITHIN THE TELEPHONE STATION [P] . AT158126T . 1997-09-15

  机译： 与位于电话站内的电路接触位于电话站内的扬声器

• 4. ACCOMMODATION FOR A CONTROL TERMINAL FOR A FORK SWITCH WITHIN A TELEPHONE STATION. [P] . ES2043230T3 . 1993-12-16

  机译： 电话站内用于叉形开关的控制端子的住宿。

• 5. ARRANGEMENT OF CONTACT BETWEEN TRANSDUCERS DISPOSED IN A MICROPHONE OF A TELEPHONE INSTALLATION AND A PRINTED CIRCUIT BOARD. [P] . ES2090213T3 . 1996-10-16

  机译： 放置在电话机的麦克风和打印电路板上的传感器之间的布置。

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• 5. Recent Progress of High Density Multi-Layer Printed Circuit Boards and the Discussions Towards the Future. Utilization of Multi-Layer Printed Circuit Boards in Advanced Applications. Portable Telephone. [O] . Takumi FURUKAWA 1994
• 6. Comparative Costs of Base Administrative Telephone Service Provided by Commercial and Government Telephone Plants [R] . Donahue, W. J. 1979

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• 4. Efficient recovery of valuable metals from waste printed circuit boards by microwave pyrolysis [J] . Yubo Liu ,Jialiang Zhang ,Xu Yang . 中国化学工程学报:英文版 . 2021,第12期
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