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when did people start bying phones
On February 14, 1876, a man named Elisha Grey, who had invented a similar device, submitted to the US Patent Office his intent to file for a patent on his invention; on the same day, Bell filed his completed application for a patent for his device. Grey could have converted his intent to and application for a patent, but he didn't; on March 7, 1876 Bell's US patent No. 174,465 for the telephone is granted.
http://www.answers.com/Q/When_did_people_start_using_telephones -
The changes of the phone
The phone has changed in many diffrent ways it went like this it got so good they made toach screen -
batterys of the phone
The battery of the phone gone for big to littel -
The First cell Phone
The person who invented the teliphone was Martin Cooper.
This first prototype was a Motorola Dyna-Tac Phone. The Dyna-Tac cell phone was:
◦9x5x1.175 inches
◦Had 30 circuit boards
◦Weighed 2.5 pounds
◦A talk time of 35 minutes
◦A recharge time of 10 hours
◦Its only features were talk, listen,and dial http://www.cellphonereviews.com/who-invented-the-cell-phone/ -
Phone histry
the phone is a great comunikator but we all love it the phones have helped as is so many ways -
the phones improvmets
the phone got so many improvments and the made a phone that bends and iphones and ipods and so many improvments -
The phones
The first phone made was really big but they got more advanced so they made the more portable and more movlble -
The flixibl phoone
they have made a flexible phone form all the years they made a phone flexible the phons when from big and hard to flexible
