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经营范围
发明名称
Shuttle spring
摘要
申请公布号
US2771910(A)
申请公布日期
1956.11.27
申请号
US19540406680
申请日期
1954.01.28
申请人
DRAPER CORPORATION
发明人
TAFT WILLARD W.
分类号
D03J5/08
主分类号
D03J5/08
代理机构
代理人
主权项
地址
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