Tone generator with directivity cues
United States Patent 3336432
Inventors:
Hyman, Hurvitz
Sts NW. H.
Publication Date:
08/15/1967
Assignee:
Hyman, Hurvitz
Sts NW. H.
Other Classes:
984/308, 84/661, 84/DIG.001, 84/699
International Classes:
G10H1/00
US Patent References:
| 3238304 | Stereophonic effect emphasizing system | | | |