This is a continuation of application Ser. No. 07/431,518, filed Nov. 3, 1989 and now abandoned.
Number | Name | Date | Kind |
---|---|---|---|
3564150 | Muller | Feb 1971 | |
4392135 | Ohyagi | Jul 1983 | |
4575582 | Makino | Mar 1986 | |
4644351 | Zabarsky et al. | Feb 1987 | |
4661972 | Kai | Apr 1987 | |
4677656 | Burke et al. | Jun 1987 | |
4747122 | Bhagat et al. | May 1988 | |
4811379 | Grandfield | Mar 1989 | |
4906989 | Kasugai | Mar 1990 | |
4940963 | Gutman et al. | Jul 1990 | |
5040204 | Sasuki et al. | Aug 1991 |
Number | Date | Country |
---|---|---|
0212761 | Apr 1987 | EPX |
0105160 | May 1986 | JPX |
63-224422 | Sep 1988 | JPX |
0224422 | Sep 1988 | JPX |
Entry |
---|
Charlish, Geoffrey, "Designs on Pocketing the Cellular Market", Financial Times, Dec. 11, 1987. |
Toshiba, Abstract of Eureopean Patent #0,263,666, Apr. 1988, Derwent Publications LTD. |
Motorola, "Pageboy Tone Radio Pager", Oct. 20, 1969. |
Motorola, "Dyna TAC Cellular Mobile Telephone General Description", Jun. 15, 1983, Motorola, Dyna TAC 6000X, 1984. |
Number | Date | Country | |
---|---|---|---|
Parent | 431518 | Nov 1989 |