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发明名称
Making artificial threads
摘要
申请公布号
US2100969(A)
申请公布日期
1937.11.30
申请号
US19330697083
申请日期
1933.11.07
申请人
LEON LILIENFELD
发明人
LILIENFELD LEON
分类号
D01F2/28
主分类号
D01F2/28
代理机构
代理人
主权项
地址
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