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发明名称
Classification system
摘要
申请公布号
US2228014(A)
申请公布日期
1941.01.07
申请号
US19380245413
申请日期
1938.12.13
申请人
DELAWARE CHEMICAL ENGINEERING AND DEVELOPMENT COMPANY
发明人
NAGELVOORT ADRIAAN
分类号
B03B5/38
主分类号
B03B5/38
代理机构
代理人
主权项
地址
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