Number | Name | Date | Kind |
---|---|---|---|
2653530 | McCune | Sep 1953 | |
3359107 | Goffe et al. | Dec 1967 | |
3364027 | Nerwin | Jan 1968 | |
3680456 | Nerwin | Aug 1972 | |
4145133 | Wareham | Mar 1979 | |
4200383 | Bendoni et al. | Apr 1980 |
Entry |
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Research Disclosure, vol. 192, Apr. 1980, No. 19219, Industrial Opportunities Ltd., Homewell, Havant, Hampshire, United Kingdom. |