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5Â¥2008-07-28 10:22:03
wtw1960
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2Â¥2008-07-28 06:08:25
wivern
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¿ÉÒԲ鵽µÄ°¡ [QUICK] ÀïÃæÓиö¡°Select years ¡±µÄÑ¡Ïî ÏÂÀ²Ëµ¥Ñ¡¡°1790 to present [entire database]" ½øÐмìË÷ ¼ìË÷µ½ºóµã»÷¡¾Images¡¿Ñ¡Ïî,¿ÉÒÔ¿´µ½×¨ÀûµÄÈ«ÎÄͼƬ È磺 United States Patent 3,429,948 Issue Date: February 25, 1969 Current U.S. Class: 525/127 ; 525/129; 525/130 Current International Class: C08G 18/00 (20060101); C08L 57/00 (20060101); C08L 75/00 (20060101); C08L 75/06 (20060101); C08G 18/86 (20060101) Full text is not available for this patent. Click on "Images" button above to view full patent. |
3Â¥2008-07-28 06:13:14
lgxdg
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4Â¥2008-07-28 10:20:12














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