СПИСОК патентов США - подгруппа МПК16 H04M1/515
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| № п/п | Номер патента | Название патента | |||
2013 | |||||
| 1 | 8565814 | Radio frequency communication devices and methods | |||
1987 | |||||
| 2 | 4636590 | Method and apparatus for converting frequency signals representing characters to binary code | |||
1985 | |||||
| 3 | 4523056 | Telephone including resistive array for dialing and system for using such telephone | |||
| © 2017, ПАТ-Инфо, В.И. Карнышев
Дата формирования списка: 03.04.2017 | |||||