Number | Name | Date | Kind |
---|---|---|---|
1655267 | Hahnemann et al. | Jan 1928 | |
2972018 | Hawley et al. | Feb 1961 | |
3009991 | Beckey | Nov 1961 | |
3278695 | Craig et al. | Oct 1966 | |
3562429 | West | Feb 1971 | |
3890474 | Glicksberg | Jun 1975 | |
3922488 | Gabr | Nov 1975 | |
3952158 | Kyle et al. | Apr 1976 | |
4025724 | Davidson, Jr. et al. | May 1977 | |
4195360 | Fothergill | Mar 1980 | |
4284844 | Belles | Aug 1981 | |
4439644 | Bruney, III | Mar 1984 | |
4455675 | Bose | Jun 1984 | |
4504703 | Schmeiter et al. | Mar 1985 | |
4644581 | Sapiejewski | Feb 1987 | |
4654871 | Chaplin et al. | Mar 1987 | |
4677677 | Eriksson | Jun 1986 | |
4833719 | Carme et al. | May 1989 | |
4928311 | Trompler | May 1990 | |
4953217 | Twiney et al. | Aug 1990 | |
4972491 | Wilcox, Jr. | Nov 1990 | |
5001763 | Moseley | Mar 1991 | |
5117461 | Moseley | May 1992 | |
5134659 | Moseley | Jun 1992 | |
5138663 | Moseley | Aug 1992 |
Number | Date | Country |
---|---|---|
212840 | Mar 1987 | EPX |
2925134 | Jan 1981 | DEX |
1530814 | Jan 1978 | GBX |
2172769 | Sep 1986 | GBX |
8912432 | Dec 1989 | WOX |
Entry |
---|
John Free, "Noise Zapper", Popular Science, Jan. 1987, pp. 76, 77, 96. |