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经营范围
发明名称
Tensioning device
摘要
申请公布号
US2266632(A)
申请公布日期
1941.12.16
申请号
US19380242080
申请日期
1938.11.23
申请人
HENRY FREY
发明人
FREY HENRY
分类号
B65H57/16
主分类号
B65H57/16
代理机构
代理人
主权项
地址
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