Number | Date | Country | Kind |
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9-150203 | May 1997 | JPX |
Number | Date | Country |
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0 490 298 | Jun 1992 | EPX |
0 682 972 | Nov 1995 | EPX |
59-53828 | Apr 1984 | JPX |
9614138 | May 1996 | WOX |
9709111 | Mar 1997 | WOX |
Entry |
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Kazuhiko; "Multistage Spray Tower"; Patent Abstracts of Japan; Publication No. 54 042364; Publication Date: Apr. 4, 1979; vol. 003, No. 068; (Jun. 13, 1979). |