Number | Name | Date | Kind |
---|---|---|---|
D239407 | van de Poel | Mar 1976 | |
D284854 | Vaillant | Jul 1986 | |
D298618 | Martinez | Nov 1988 | |
D306060 | Dickson | Mar 1990 | |
D313233 | Andrews, Sr. et al. | Dec 1990 | |
D316549 | Hampf | Apr 1991 |
Entry |
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W. Bell & Co., 1987 catalog, p. 233, items 6-11, telephone answering machines. |