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发明名称
Collapsible yarn holder
摘要
申请公布号
US2545790(A)
申请公布日期
1951.03.20
申请号
US19480021455
申请日期
1948.04.16
申请人
NEWMAKER FRED C
发明人
NEWMAKER FRED C.
分类号
B65H49/30
主分类号
B65H49/30
代理机构
代理人
主权项
地址
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