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经营范围
发明名称
Proportioning apparatus
摘要
申请公布号
US1999881(A)
申请公布日期
1935.04.30
申请号
US19330662847
申请日期
1933.03.25
申请人
PROPORTIONEERS, INC.
发明人
LOWE RUDY
分类号
C02F1/42
主分类号
C02F1/42
代理机构
代理人
主权项
地址
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