Number | Name | Date | Kind |
---|---|---|---|
3231858 | Tuomenoksa | Jan 1966 | |
3789204 | Barlow | Jan 1974 | |
3914741 | Bonser | Oct 1975 | |
4471486 | Sibley | Sep 1984 | |
4617662 | Auer | Oct 1986 | |
4618955 | Sharpe | Oct 1986 | |
4723244 | Iacoponi | Feb 1988 | |
4910736 | Tanaka | Mar 1990 | |
5003539 | Takemoto | Mar 1991 |
Entry |
---|
Signaling Formats on the Digital Voice Channel, TIA Tech. Subcommittee, Sep. 1989, pp. 1-7. |