Happy 10-4 Day! We thought we’d share a little information about the CB radio, in honor of “10-4”, a communication code that typically means “Got it” or “Okay.” CB Radios went into service in 1945, created by Walkie-Talkie inventor Al Gross as a method of communication for troops in World War II. At the end of the war, Gross worked on making a two-way radio for personal civilian communication. In 1949, the CB radio service was established in the United States. Use of the CB radio skyrocketed in