Number | Name | Date | Kind |
---|---|---|---|
RE27976 | Sahley | Apr 1974 | |
RE29178 | Colwill | Apr 1977 | |
3556511 | Howard et al. | Jan 1971 | |
3563532 | Street | Feb 1971 | |
3684367 | Vassitch | Aug 1972 | |
3747918 | Margulis et al. | Jul 1973 | |
3914047 | Hunt, Jr. et al. | Oct 1975 | |
4076408 | Reid et al. | Feb 1978 | |
4078787 | Burlew et al. | Mar 1978 | |
4140387 | Gustafson | Feb 1979 |
Number | Date | Country |
---|---|---|
1492466 | Nov 1977 | GBX |
Entry |
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Research Disclosure, Industrial Opportunities, Ltd., Homewell, Hauant, Hampshire, P091EF, United Kingdom, pp. 47, 48. |