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经营范围
发明名称
Proportioning apparatus
摘要
申请公布号
US2218393(A)
申请公布日期
1940.10.15
申请号
US19360100894
申请日期
1936.09.15
申请人
JEFF CORYDON
发明人
CORYDON JEFF
分类号
C02F1/68
主分类号
C02F1/68
代理机构
代理人
主权项
地址
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