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发明名称
Needle threader
摘要
申请公布号
US2656080(A)
申请公布日期
1953.10.20
申请号
US19510204119
申请日期
1951.01.03
申请人
ALBERTUS PRETORIUS
发明人
PRETORIUS ALBERTUS
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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