Number | Date | Country | Kind |
---|---|---|---|
61-75978 | Apr 1986 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
4476107 | Schmolka | Oct 1984 |
Number | Date | Country |
---|---|---|
1554615 | Oct 1979 | GBX |
Entry |
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Polyethers (PtI Polyalkylene Oxides & Other Polyethers) Gaylord ed. Interscience Publishers .COPYRGT. 1963. |