Number | Date | Country | Kind |
---|---|---|---|
6-113615 | Apr 1994 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
4299344 | Yamashita et al. | Nov 1981 | |
4569567 | Zucchini | Feb 1986 | |
5354953 | Nattel et al. | Oct 1994 |
Number | Date | Country |
---|---|---|
31 48 263 | Jun 1983 | DEX |
1-311653 | Dec 1989 | JPX |
3-40771 | Apr 1991 | JPX |
4-20746 | Feb 1992 | JPX |
4-128463 | Nov 1992 | JPX |
Entry |
---|
ITT, The ITT Modular Wall Phone, Sep. 12, 1977. |