Number | Name | Date | Kind |
---|---|---|---|
D232226 | Bee et al. | Jul 1974 | |
D285558 | Isaacs | Sep 1986 | |
D298316 | Maiskas | Nov 1988 | |
D306027 | Gagnon | Feb 1990 | |
D306859 | Helstab et al. | Mar 1990 | |
D340057 | Wetzel et al. | Oct 1993 | |
D348470 | Nagele et al. | Jul 1994 | |
D366837 | Cooney | Feb 1996 | |
D370911 | Mo | Jun 1996 | |
D388102 | Yoneyama | Dec 1997 | |
D392980 | Lepak | Mar 1998 |
Entry |
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Northern Telecom product brochure "Meridian Digital Telephones" Nov. 1992. |