We owe a lot to Motorola and its team of inventors and engineers. The company made breakthroughs in portable radio and brought us one of the first-ever cellphones. It launched the flip phone, the clamshell and the wildly popular RAZR V3. There have been some ups and downs along the way, and the company's endured more than its share of corporate hand-changing, but with its Moto series and Nexus 6, it's now back amongst the smartphone elite. In this week's Rewind, we take a look at some of the milestones in Motorola's quest for portable communicators.