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发明名称
Proportioning device
摘要
申请公布号
US2105078(A)
申请公布日期
1938.01.11
申请号
US19360107987
申请日期
1936.10.28
申请人
HILL BROTHERS CHEMICAL CO., INC.
发明人
HILL CHARLES B.
分类号
G05D11/03
主分类号
G05D11/03
代理机构
代理人
主权项
地址
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