Apparatus for recording, transmission or reproduction of sound; central processing units (CPU) being computer hardware; commutators; computer operating programs, recorded; computers; integrated circuits; microprocessors being computer hardware; notebook computers; portable telephones; telephone apparatus; video telephones

Apparatus for recording, transmission or reproduction of sound; central processing units (CPU) being computer hardware; commutators; computer operating programs, recorded; computers; integrated circuits; microprocessors being computer hardware; notebook computers; portable telephones; telephone apparatus; video telephones