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发明名称
METHOD AND COMPOSITION FOR RETARDING WATER EVAPORATION
摘要
申请公布号
US3531239(A)
申请公布日期
1970.09.29
申请号
USD3531239
申请日期
1968.10.02
申请人
JOHN J. ROWLETTE
发明人
JOHN J. ROWLETTE
分类号
B01J19/16;C02F1/00;(IPC1-7):B01J1/18
主分类号
B01J19/16
代理机构
代理人
主权项
地址
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