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经营范围
发明名称
Gaseous diffuser
摘要
申请公布号
US2321879(A)
申请公布日期
1943.06.15
申请号
US19420439431
申请日期
1942.04.17
申请人
RAFAEL VALDEZ
发明人
VALDEZ RAFAEL
分类号
B01F3/02;B01F5/04;B01F5/10;C13B20/00
主分类号
B01F3/02
代理机构
代理人
主权项
地址
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