Number | Date | Country | Kind |
---|---|---|---|
8221958 | Jul 1982 | GBX |
Number | Name | Date | Kind |
---|---|---|---|
2735766 | Hill | Feb 1956 | |
3628960 | Philippaerts | Dec 1971 | |
3666477 | Goffe | May 1972 | |
3719495 | Lea | Mar 1973 | |
3871887 | Jones | Mar 1975 | |
4105451 | Smith et al. | Aug 1978 | |
4123282 | Winslow | Oct 1978 | |
4128557 | Knight et al. | Dec 1978 | |
4161408 | Winslow et al. | Jul 1979 | |
4173478 | Holstead et al. | Nov 1979 | |
4183756 | Locker | Jan 1980 | |
4225666 | Locker et al. | Sep 1980 |
Entry |
---|
Research Disclosure, Dec. 1971, vol. 92, pp. 107-110, #9232. |
Research Disclosure, Jun. 1978, No. 170, pp. 9-15, #17029. |
Research Disclosure, No. 19227. |