Number | Name | Date | Kind |
---|---|---|---|
2496398 | Lambert | Feb 1950 | |
2759179 | Kircher | Aug 1956 | |
2802055 | Wildhagen | Aug 1957 | |
3283075 | Moore | Nov 1966 | |
3400218 | Sibley | Sep 1968 | |
3499115 | Sontag | Mar 1970 | |
3530245 | Berns | Sep 1970 | |
3594786 | Brunner-Schwer et al. | Jul 1971 | |
3763326 | Murto et al. | Oct 1973 | |
3849603 | Proios | Nov 1974 | |
3870829 | Chacon | Mar 1975 | |
3904834 | Shinoi et al. | Sep 1975 | |
4024345 | Kochem | May 1977 | |
4055729 | Vandling | Oct 1977 | |
4073133 | Earls et al. | Feb 1978 | |
4086447 | Schindler et al. | Apr 1978 | |
4097690 | Kuntz et al. | Jun 1978 | |
4101735 | Bridenbaugh | Jul 1978 | |
4110750 | Heyning et al. | Aug 1978 | |
4132869 | Knox | Jan 1979 | |
4140879 | Heffernan | Feb 1979 | |
4158112 | Cerbone et al. | Jun 1979 | |
4196317 | Bartelink | Apr 1980 | |
4203006 | Mascia | May 1980 | |
4309573 | Grantland et al. | Jan 1982 | |
4320682 | Schreier | Mar 1982 | |
4329543 | Danford | May 1982 | |
4467142 | Rupp et al. | Aug 1984 | |
4485273 | Bartelink | Nov 1984 |
Number | Date | Country |
---|---|---|
54-136252 | Oct 1979 | JPX |
Entry |
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M. A. Patten, "Electronic Line Pack with Opto-Electronic Line Isolation," IBM Technical Disclosure Bulletin, vol. 20, No. 1, pp. 375-376, Jun. 1977. |
Technicom International, Inc., Homefone: Smarten Your Home by Phone, Brochure, Postmarked Mar. 25, 1983. |
Drawing--Nutone Model IM-406; 6-Wire Radio/Intercom Master Unit; Nutone Scovill, Cincinnati, Oh. |
Drawing--I-614, Nutone Scovill, Cincinnati, Oh., Drawn, 12-20-79. |