Number | Name | Date | Kind |
---|---|---|---|
D206161 | Cuccio et al. | Nov 1966 | |
D235069 | Todeschini | May 1975 | |
D250111 | Hernandez et al. | Oct 1978 | |
D254066 | Kohlman | Jan 1980 | |
D259638 | Giovanna | Jun 1981 | |
D265310 | Kovens | Jul 1982 | |
D275195 | Endt | Aug 1984 | |
D275481 | Foggia et al. | Sep 1984 | |
D277002 | Genaro et al. | Jan 1985 |
Number | Date | Country |
---|---|---|
2277475 | Jan 1976 | FRX |
Entry |
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Post Office Elect. Eng's. Journal (Gr. Brit.) vol. 74, Oct. 1981; Article showing customer apparatus: at p. 237 #756,772. |
C & P Telephone Brochure, Jan. 1966: Touchtone Phone, top page, left column. |
Telephony/Oct. 1980; Phone in FIG. 1A-"Vital 2": at p. 100. |
B. A. Pargh Co. Inc. .COPYRGT.1983: at p. 40, "Web-Cor" #1050W; p. 42, BusCom PT2112 Pad; p. 43, The Operator, P/20. |