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经营范围
发明名称
Needle threader
摘要
申请公布号
US1765102(A)
申请公布日期
1930.06.17
申请号
US19240699474
申请日期
1924.03.15
申请人
SCOFIELD VIRGIL A
发明人
SCOFIELD VIRGIL A.
分类号
D05B87/00
主分类号
D05B87/00
代理机构
代理人
主权项
地址
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