Number | Date | Country | Kind |
---|---|---|---|
63-130675 | May 1988 | JPX | |
63-227007 | Sep 1988 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
3837736 | Oglso et al. | Sep 1974 | |
4472742 | Hasegawa et al. | Sep 1984 | |
4531822 | Shenk | Jul 1985 | |
4594610 | Patel | Jun 1986 | |
4862278 | Dann et al. | Aug 1989 |
Entry |
---|
"Zoom Microphone," Yukinobu Ishigaki et al., Presented at 67th Convention, Audio Engineering Society, Oct. 31-Nov. 3, 1980, New York, NY. |