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发明名称
Process of cleaning vegetable fiber and the like
摘要
申请公布号
US1797507(A)
申请公布日期
1931.03.24
申请号
US19280252372
申请日期
1928.02.06
申请人
GEORGE KNOWLES
发明人
KNOWLES GEORGE
分类号
D01B1/22
主分类号
D01B1/22
代理机构
代理人
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