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发明名称
Sewing machine ventilating system
摘要
申请公布号
US1844743(A)
申请公布日期
1932.02.09
申请号
US19280320639
申请日期
1928.11.20
申请人
UNION SPECIAL MACHINE COMPANY
发明人
CHRISTENSEN NORMAN V.
分类号
D05B73/00
主分类号
D05B73/00
代理机构
代理人
主权项
地址
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