who invented the mobile phone

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20W Powerful 10 Antennas GPS WiFi Bluetooth LoJack UHF VHF 3G 4G Phone Jammer Phone Jammer Introduction: Have you ever considered that with the high technology the high power jammer that own 10 antennas has been invented? Then this 20W Powerful 10 Antennas...

Android Mobile Phone QR Code Scanner Module USB PORT LV3296R 2500 Resolution 2D Barcode Decoder Chip: The engine armed with the state-of-the-art 2D barcode decoder chip invented by demonstrates unprecedented reading performance. Two-In-One Design: Seamless...

...Phone Signal Jammer 3G Lojack GPS For Examination Hall Product Description Now to meet the requirements of people more and more jammers that designed with the selectable button has been invented and now are well welcomed by people now and here that you are viewing is the Selectable Portable 3G Mobile Phone LoJack Jammer & GPSL1 GPSL2 GPSL5 Signal Jammer, which is a new invented...

...-periodic array or log-periodic aerial, is a multi-element, directional antenna designed to operate over a wide band of frequencies. It was invented by John Dunlavy in 1952. The most common form of log-periodic antenna is the log-periodic dipole array or

New 2017 inventions slim portable jump starter for vehicles car battery powerbank jump starter What is jump starter for? Starting dead 12V vehicle; Starting dead motorcycle, sleigh, yacht. Charging mobile phone, pad, MP5, laptop etc; SOS, working light,...