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经营范围
发明名称
Improvements in or relating to an electrical chlorine concentration limit indicator
摘要
申请公布号
GB643865(A)
申请公布日期
1950.09.27
申请号
GB19470016644
申请日期
1947.06.24
申请人
WALLACE & TIERNAN PRODUCTS INC.
发明人
分类号
C02F1/76
主分类号
C02F1/76
代理机构
代理人
主权项
地址
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