information, e.g. also modulated musical information in an optimum undistorted and...http://www.google.com/patents/US4593153?utm_source=gb-gplus-sharePatent US4593153 - Power transmission cable, such as loudspeaker cableAdvanced Patent SearchPublication numberUS4593153 APublication typeGrantApplication numberUS 06/660,240Publication dateJun 3, 1986Filing dateOct 12, 1984Priority dateOct 14, 1983Fe