Sound reproduction apparatus
United States Patent 3340956

Inventors:
Owen Jr., George Edwin
Publication Date:
09/12/1967
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Assignee:
MOTOROLA INC
Primary Class:
181/145
International Classes:
H04R5/02
US Patent References:
2979150High fidelity loud speaker cabinet
3016424Monaural and binaural sound system
3076520Loud speaker
3097720Acoustical enclosure and low frequency sound amplifier for a loudspeaker