C. Harry Knowles (August 15, 1928 – January 7, 2020) was an American physicist, entrepreneur, philanthropist, and a prolific inventor who held some 400 patents.
C. Harry Knowles (August 15, 1928 – January 7, 2020) was an American physicist, entrepreneur, philanthropist, and a prolific inventor who held some 400 patents. (en)
C. Harry Knowles (August 15, 1928 – January 7, 2020) was an American physicist, entrepreneur, philanthropist, and a prolific inventor who held some 400 patents. (en)