Number | Date | Country | Kind |
---|---|---|---|
56-178091 | Nov 1981 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
2604809 | Mitchell | Jul 1952 | |
4423331 | Koizumi et al. | Dec 1983 |
Number | Date | Country |
---|---|---|
2643361 | Mar 1978 | DEX |
Entry |
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Klochko et al., "Photometric Method of Estimating the Particle Size _of Carbon Black", Industrial Laboratory, vol. 39, No. 5, pp. 753-_755, May '73. |