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经营范围
发明名称
Treatment of boiler water
摘要
申请公布号
US1762784(A)
申请公布日期
1930.06.10
申请号
US19270186445
申请日期
1927.04.25
申请人
THE PERMUTIT COMPANY
发明人
KRIEGSHEIM HEINRICH
分类号
C02F5/02
主分类号
C02F5/02
代理机构
代理人
主权项
地址
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