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经营范围
发明名称
Manufacture of porous rubber
摘要
申请公布号
US2175798(A)
申请公布日期
1939.10.10
申请号
US19360091900
申请日期
1936.07.22
申请人
DEWEY AND ALMY CHEMICAL COMPANY
发明人
HAUSER ERNST A.
分类号
主分类号
代理机构
代理人
主权项
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