Number | Name | Date | Kind |
---|---|---|---|
3725601 | Jetzt et al. | Apr 1973 | |
4060700 | Magnusson | Nov 1977 | |
4332983 | Vakili | Jun 1982 | |
4377726 | Schiffbauer et al. | Mar 1983 | |
4459434 | Benning et al. | Jul 1984 | |
4538031 | Benning et al. | Aug 1985 | |
4578540 | Borg et al. | Mar 1986 | |
4588864 | Carter et al. | May 1986 | |
4636589 | Lee | Jan 1987 | |
4769837 | McCormick et al. | Sep 1988 | |
4821319 | Middleton et al. | Apr 1989 |
Number | Date | Country |
---|---|---|
8606570 | Nov 1986 | WOX |
Entry |
---|
"Super Phone", Popular Mechanics, Dec. 1982, p. 122. |