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标题: Using ammonia and ammonium salts for extraction followed by oxidation and hea... [打印本页]

作者: Finally 时间: 2014-9-17 14:26
标题: Using ammonia and ammonium salts for extraction followed by oxidation and hea...

专利国别	US
专利名称	Using ammonia and ammonium salts for extraction followed by oxidation and heating
专利号	US5114687 A
标准国别	US
标准类别	授权
标准名称	Using ammonia and ammonium salts for extraction followed by oxidation and heating
标准号	US5114687 A
标准年份	1992

作者: Ferrari 时间: 2014-9-17 14:26
http://1000eb.com/yx6k

作者: Finally 时间: 2014-9-18 09:12

Ferrari 发表于 2014-9-17 14:26
http://1000eb.com/yx6k

谢谢

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