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parent award to Nathan B. Stubblefield in May 12, 1908, details a "wireless telephone" able to transmit calls using radio. The large, if not entirely unwieldy transmitter does not looks too bad given the day. A further requirement for a series of wires suspended throughout the area, however, perhaps explains why it never caught on. From the Daily Telegraph...
One hundred years on, Stubblefield is finally being recognised as the inventor of the mobile phone. Just 30 years after the first proper long-distance phone network was set up, the Kentucky melon farmer was awarded the patent for his "wireless telephone".
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∙ 13y ago
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∙ 11y agoThe first hand-held mobile phone was demonstrated by John F. Mitchell and Dr. Martin Cooper of Motorola in 1973, using a handset weighing around 2.2 pounds. In 1983, the DynaTAC 8000x was the first to be commercially available.
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∙ 15y agoJagadish Chandra Bose in 1893 http://www.springerlink.com/content/v00wl26137798036/
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∙ 11y ago1965
Wiki User
∙ 15y ago1920
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When were amplified cordless phones first produced?
The amplified cordless phones were first produced in March of 2011. With their many options and ease of use, they became popular very quickly and are now used by many people.
How do Panasonic phones differ from other phones ?
The Panasonic cordless phone better than others cordless phones because of its voice quality and look. These phones are popular than other cordless phones as compared to its prices and quality.
How do cordless phones receive signals?
Cordless phones use radio frequencies to send the messages from a base, which is attached to the phone line, through the air to the cordless handset. Newer cordless phones receive their signals digitally.
When was the cordless phone created?
It is still in use, though its use continues to decline. It is not yet obsolete.
When did corded telephones become slightly outdated?
Corded phones have gradually become outdated over the last 20 or 30 years since the first cordless phones were introduced in the 1980s. The quality of connection from cordless phones has improved with the introduction of digital transmission. These days, with the prevalence of mobile phones and VOIP technology such as Skype, even cordless phones are looking sated.
When was the first cordless telephone invented?
It was invented in 1956 by Raymond P. Phillips.
Is flexibility one of the options for having expandable cordless phones?
Expandable cordless phones are landline devices of communication having enhanced variety of use. While most types of cordless phones work within a specified
What would the range be on cordless phones?
There are many cordless phones on the market for purchase. Cordless phone have a large range. There is no consistent range. One of the largest ranges a person can find is 5.8GHz.
Is a cordless phone worth paying more than a cell phone?
Cordless phones and cellular phones each have their advantages and disadvantages. With cordless phones you must stay within a certain range of the base, but a cellular phone you can carry with you everywhere.
Which companies make cordless phones for the house?
There are many companies that offer great deals on cordless phones. According to consumer reports, the following companies, offer the best deals and the best quality phones: AT&T, Motorola, Uniden, GE, Panasonic, and VTech. Clarity, offers cordless phones for visually and hearing impaired people.
Are there magnets in cordless phones?
Yes. Yes there are.
Do cordless phones erase the memory of the elderly?
No.
