Dr Martin Cooper, a former general manager for the systems division at Motorola, is considered the inventor of the first portable handset and the first person to make a call on a portable cell phone in April 1973. The first call he made was to his rival, Joel Engel, Bell Labs head of research.
AT&T's research arm, Bell Laboratories, introduced the idea of cellular communications in 1947. But Motorola and Bell Labs in the sixties and early seventies were in a race to incorporate the technology into portable devices.
Cooper, now 70, wanted people to be able to carry their phones with them anywhere.
While he was a project manager at Motorola in 1973, Cooper set up a base station in New York with the first working prototype of a cellular telephone, the Motorola Dyna-Tac. After some initial testing in Washington for the F.C.C., Mr. Cooper and Motorola took the phone technology to New York to show the public.
yes she did she also invented pie
How about 1957, when RCA came out with the first portable AM radio (at least in the States)? I still have it and it works. It used germanium transistors and was a real battery hog. It was an expensive item for the time and of course, the odd, round 9 volt battery is no longer available.
the first piano was invented by bartolomeo cristofori
how to lock binatone handset
The first Plastic to be invented was CELLULOID in 1868
UTStarcom
Dr Martin Cooper, a former general manager for the systems division at Motorola, is considered the inventor of the first portable handset and the first person to make a call on a portable cell phone in April 1973. Teslas coil was the basis on all wirelless communications.
The first handset telephone was introduced the Ericsson. It was introduced in the United States in 1878. It was introduced in France in 1879.
The first portable clock or timepiece was invented in 1504 in Nuremberg, Germany. Peter Henlein was the inventor and his piece was not very accurate.
hoover
you chicken
Martin Cooper invented the first mobile handset in the 1970s, and it was released to the market in 1983. Cooper led the invention team at Motorola.
The first portable DVD players were introduced in 1998 by Panasonic. While newer portable DVD players have an average screen size of 7 inches, the first portable DVD player's screen was only 5 inches.
the first was made by Wayne kur
john ball man
Yes, it is. The portable recycling unit is invented.
i think in 2001 by a America guy. that was the earliest portable charger. Now KINKOO is the very reliable portable backup charger for smart devices.