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发明名称
FLOW CONTROL MEANS FOR WATER TREATING APPARATUS
摘要
申请公布号
US3473665(A)
申请公布日期
1969.10.21
申请号
USD3473665
申请日期
1968.07.31
申请人
UNION TANK CAR CO.
发明人
JOSEPH H. DUFF
分类号
B01D21/30;B01D21/00;B01D21/34;C02F1/52;(IPC1-7):C02B1/10;B01D19/04
主分类号
B01D21/30
代理机构
代理人
主权项
地址
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