Sound dispersion device with internal divergent acoustical lens
United States Patent 2805728
US Patent References:
Metallic structure for delaying propagated waves
- - 2579324
Directional acoustic system
- - 2580439
Metallic structure for delaying propagated waves
- - 2579324
Directional acoustic system
- - 2580439
Inventors:
Manley, Fred A.
Publication Date:
09/10/1957
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Assignee:
GEN DYNAMICS CORP
Primary Class:
International Classes:
H04R1/34; H04R1/32
Foreign References:
| FR564109A |