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Nathan Borland Barton, VT
Professions & Specialties
Speaker • Spokesperson • Representative
Experience & Education
United States Patent | Inventor | Appl. No. | Assignee |
---|---|---|---|
#5286928 Feb 15, 1994 Filed: Apr 12, 1993 |
Nathan J. Borland (Barton, VT) | 8/044809 | |
International Classification: | H05K 500 | 181153 |
Patent:
Tunable speaker tube
Abstract:
A speaker tube structure formed of a semi-cylindrical first side wall portion and a planar second...