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发明名称
Needle threader
摘要
申请公布号
US2059680(A)
申请公布日期
1936.11.03
申请号
US19350004788
申请日期
1935.02.04
申请人
CARLSON CARL A
发明人
CARLSON CARL 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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