coupling for forespørgselsopkald by private automatic telephone exchanges.

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• 2. 支持自动电话连接的电话号码检索系统和其方法 [P] . 中国专利： CN1183713C . 2005.01.05
• 3. coupling by the private automatic telephone exchanges. [P] . DK92550C . 1962-01-15

  机译： 通过私人自动电话交换机耦合。

• 4. provision circuitale to determine the use of telephone sets in a private automatic telephone exchanges. [P] . IT7827586D0 . 1978-09-13

  机译： 提供电路，以确定在私人自动电话交换机中使用电话机。

• 5. PRIVATE AUTOMATIC TELEPHONE EXCHANGES. [P] . IE16705L . 1945-01-08

  机译： 私人自动电话交换。

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• 3. Automatic Telephones for Institutions [O] . 1914
• 4. Automatic detection and localization of sister chromatid exchanges. [O] . G W Zack, J A Spriet, S A Latt, 1976

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