Number | Date | Country | Kind |
---|---|---|---|
10-096708 | Mar 1998 | JP | |
10-185614 | Jun 1998 | JP |
Number | Name | Date | Kind |
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4228532 | Sims | Oct 1980 | A |
4344503 | Nakamura et al. | Aug 1982 | A |
5185549 | Sullivan | Feb 1993 | A |
5241140 | Itoh et al. | Aug 1993 | A |
5802196 | Nakamura | Sep 1998 | A |
5881157 | Lee et al. | Mar 1999 | A |
5923766 | Oda | Jul 1999 | A |
5982907 | Akamatsu et al. | Nov 1999 | A |
6058196 | Heron | May 2000 | A |
6078670 | Beyer | Jun 2000 | A |
Number | Date | Country |
---|---|---|
0 782 370 | Jul 1997 | EP |
0 810 811 | Dec 1997 | EP |
2 223 377 | Apr 1990 | GB |
2 260 875 | Apr 1993 | GB |
Entry |
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M. Colloms, “High Performance Loudspeakers”, 5th Edition, 1997, Wiley, pp. 216-219. |