СПИСОК патентов США - подгруппа МПК16 H04R13/02
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| № п/п | Номер патента | Название патента | |||
2017 | |||||
| 1 | 9578434 | Method for making diaphragm | |||
2016 | |||||
| 2 | 9282404 | Handset microphone | |||
2005 | |||||
| 3 | 6920230 | Electromagnetic transducer and portable communication device | |||
2003 | |||||
| 4 | 6671383 | Electromagnetic transducer and portable communication device | |||
2000 | |||||
| 5 | 6061459 | Surface-mounted electromagnetic sound generating body | |||
1999 | |||||
| 6 | 5923769 | Electroacoustic transducer | |||
1998 | |||||
| 7 | 5721785 | Small-sized sound generator | |||
1978 | |||||
| 8 | 4075437 | Composition, processing and devices including magnetic alloy | |||
| © 2017, ПАТ-Инфо, В.И. Карнышев
Дата формирования списка: 03.04.2017 | |||||