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发明名称
Verfahren zur Darstellung eines harnstoffhaltigen Kalkstickstoff-Duengemittels
摘要
申请公布号
DE509934(C)
申请公布日期
1930.10.14
申请号
DE1928W080982D
申请日期
1928.11.20
申请人
DR. HERBERT WITTEK
发明人
分类号
C01C3/18;C05C13/00
主分类号
C01C3/18
代理机构
代理人
主权项
地址
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