Number | Name | Date | Kind |
---|---|---|---|
1209298 | Hoppie | Dec 1916 | |
1640488 | Deibel et al. | Aug 1927 | |
2890261 | Andre | Jun 1959 | |
2930829 | Jacquier | Mar 1960 | |
2942057 | Huber et al. | Jun 1960 | |
3463669 | Jammet | Aug 1969 | |
3513033 | Watanabe et al. | May 1970 | |
3558358 | Ropp | Jan 1971 | |
3573106 | Johnson et al. | Mar 1971 |
Entry |
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Ott et al., Cellulose and Cellulose Derivatives, Second Edition, by Interscience Publishers, Inc. N.Y., (1954), pp. 202-207. |