Number | Date | Country | Kind |
---|---|---|---|
2800466 | Jan 1978 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
2043906 | Sheppard et al. | Jun 1936 | |
2751315 | Staehle | Jun 1956 | |
2992101 | Jelley et al. | Jul 1961 | |
3017280 | Yudelson | Jan 1962 | |
3201251 | Nadeau et al. | Aug 1965 | |
3203804 | Cohen et al. | Aug 1965 | |
3493379 | Donoghue | Feb 1970 | |
3753765 | Morgan et al. | Aug 1973 | |
3907573 | Franco et al. | Sep 1975 | |
3997701 | Ealding et al. | Dec 1976 | |
4022622 | Timmerman et al. | May 1977 | |
4047958 | Yoneyama et al. | Sep 1977 | |
4070189 | Kelley et al. | Jan 1978 | |
4126460 | Okishi | Nov 1978 | |
4142894 | Hori et al. | Mar 1979 | |
4168979 | Okishi et al. | Sep 1979 |
Entry |
---|
Guestaux, M., Research Disclosure, Disclosure #12737, pp. 32-33, 11/1974. |