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经营范围
发明名称
Process of making alkali cellulose
摘要
申请公布号
US1973491(A)
申请公布日期
1934.09.11
申请号
US19210436604
申请日期
1921.01.11
申请人
LEON LILIENFELD
发明人
LILIENFELD LEON
分类号
C08B1/08
主分类号
C08B1/08
代理机构
代理人
主权项
地址
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