This patent is for the Altec Acousta-Voicing Process. Specific embodiment as yet undetermined, could span several product models of equalizers and related items.

SOUND-IMPROVING MEANS AND METHOD

Patent number: 3624298
Filing date: Mar 5, 1969
Issue date: May 1972
Inventors: Arthur C Davis, Donald B Davis, Tustin; James J Noble
Assignee: LTV Ling Altec