Loudspeaker enclosure
United States Patent 2978060
US Patent References:
Acoustic apparatus
- - 2217279
Radio cabinet and speaker mounting
- - 2440078
Apparatus for imposing vibrato on sound
- - 2622693
Acoustic horn assembly
- - 2765864
Diffused-tone cabinet
- - 2801704
Acoustic apparatus
- - 2217279
Radio cabinet and speaker mounting
- - 2440078
Apparatus for imposing vibrato on sound
- - 2622693
Acoustic horn assembly
- - 2765864
Diffused-tone cabinet
- - 2801704
Inventors:
Roberts, Alfred H.
Publication Date:
04/04/1961
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Assignee:
Roberts, Alfred H.
Primary Class:
Other Classes:
381/349, 381/352, 181/151
International Classes:
H04R1/28
US Patent References:
| 2871971 | Sound-propagating device |
Foreign References:
| GB747263A |