Dr. Martin Cooper made the first phone call on a cell phone in April 1973. Who did he call? He called one of his rivals, Joe Engel, who was the head...
Dr. Martin Cooper made the first phone call on a cell phone in April...
A telephone directory or phone book is a listing of the subscribers...
James Fenimore Cooper has often been called the first American...
The Editors of Improve.com recommend the...
Patient Satisfaction with Hospital stays will be a...