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发明名称
Needle threader and presser foot
摘要
申请公布号
US2214306(A)
申请公布日期
1940.09.10
申请号
US19390296993
申请日期
1939.09.28
申请人
LOUNSBURY JOHN C
发明人
LOUNSBURY JOHN C.
分类号
D05B29/00;D05B87/00
主分类号
D05B29/00
代理机构
代理人
主权项
地址
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