Number | Name | Date | Kind |
---|---|---|---|
D151806 | Beitch et al. | Nov 1948 | |
D184307 | Dreyfuss et al. | Jan 1959 | |
189781 | Barkin | Feb 1961 | |
194539 | Brown | Feb 1963 | |
D202787 | Dreyfuss et al. | Nov 1965 | |
215664 | Dreyfuss | Oct 1969 | |
D216641 | Phillips | Feb 1970 | |
257977 | Blomberg | Jan 1981 | |
259260 | Blomberg | May 1981 | |
D287124 | Becker | Dec 1986 |
Entry |
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Review of Electrical Comm. Labs, vol. 28, Nos. 9-10; 9-16, 1980; model 701p, telephone set, pp. 863,864,875. |