Number | Date | Country | Kind |
---|---|---|---|
364789 | Nov 1980 | CAX |
Number | Name | Date | Kind |
---|---|---|---|
3451952 | Slocombe | Jun 1969 | |
4125487 | Olstowski | Nov 1978 | |
4133723 | Howard | Jan 1979 |
Entry |
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Frisch et al., (ed), Advances in Urethane Science & Technology, vol. 4, Technomatic, Westport, Conn., 1976, pp. 132-165. |