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发明名称
Liquid responsive system
摘要
申请公布号
US2296969(A)
申请公布日期
1942.09.29
申请号
US19380219935
申请日期
1938.07.18
申请人
CHICAGO BY-PRODUCTS CORPORATION
发明人
WITTMANN ROBERT A.
分类号
A47J31/56;B01D1/00
主分类号
A47J31/56
代理机构
代理人
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地址
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