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经营范围
发明名称
Treatment of calcium sulfite
摘要
申请公布号
US2453099(A)
申请公布日期
1948.11.02
申请号
US19430504921
申请日期
1943.10.04
申请人
RAFFOLD PROCESS CORPORATION
发明人
RAFTON HAROLD R.
分类号
C01F11/48;D21H17/67;D21H19/38
主分类号
C01F11/48
代理机构
代理人
主权项
地址
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