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On April 3, 1973, Marty Cooper made the world's first cell phone call in New York City after he and his team at Motorola invented the technology.
John C. Koss, the founder and former chairman of Koss Corp., died Tuesday, Dec. 21. He was 91 years old.
John C. Koss, founder and former chairman of Koss Corporation, died Tuesday at the age of 91.
MILWAUKEE, Wis., Dec. 22, 2021 (GLOBE NEWSWIRE) -- Musician, entrepreneur, and inventor John C. Koss passed away Tuesday, December 21, 2021, at 91. He...
John C. Koss, the founder of Milwaukee-based Koss Corp. and inventor of the stereophone, died Tuesday at the age of 91, the company announced today.