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发明名称
Yarn tensioning device
摘要
申请公布号
US2554493(A)
申请公布日期
1951.05.29
申请号
US19470770021
申请日期
1947.08.22
申请人
SPECIALTIES DEVELOPMENT CORPORATION
发明人
HEIZER EDWARD J.
分类号
B65H59/24
主分类号
B65H59/24
代理机构
代理人
主权项
地址
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