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经营范围
发明名称
Kondensation von heisser Phosphorsaeure und aehnlichen Daempfen
摘要
申请公布号
DE495430(C)
申请公布日期
1930.04.07
申请号
DE1926M096187D
申请日期
1926.09.18
申请人
DR. HERMANN MEHNER (SOHN)
发明人
分类号
C01B25/20
主分类号
C01B25/20
代理机构
代理人
主权项
地址
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