en.wikipedia.org/wiki/Koss_Corporation

Koss Corporation is an American company that designs and manufactures headphones. Headquartered in Milwaukee, Wisconsin since 1958, the company  ...

www.koss.com

Renowned for the invention of the original SP/3 stereophones, Koss has been pioneering hi-fi since 1958 - three generations of American ingenuity, integrity ...

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www.koss.com/headphones

Koss Headphones. Join Our .... Ever since I invented the world's first SP/3 Stereophone back in 1958, Koss ... Koss Corporation • 4129 N. Port Washington Ave.

finance.yahoo.com/quote/koss

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kosscorporation.gcs-web.com/investor-relations

The Investor Relations website contains information about Koss Corporation's business for stockholders, potential investors, and financial analysts.

www.referenceforbusiness.com/history2/23/Koss-Corporation.html

Koss Corporation is the leading U.S. maker of stereo headphones. The company pioneered the stereo headphone in the 1950s. The product was invented by ...

www.nytimes.com/topic/company/koss-corporation

Koss Corporation financial and business news, updates, and information from The New York Times and other leading providers.