Number | Date | Country | Kind |
---|---|---|---|
2-405946 | Dec 1990 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
4840104 | Ishida et al. | Jun 1989 |
Entry |
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Hawley, Condensed Chemical Dictionary, Van Nostrand Reinhold, 1974, p. 168. |
Hercules Cellulose Acetate, Hercules Powder Company, Wilmington, Del., 1943. |