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发明名称
Spring structure
摘要
申请公布号
US1897402(A)
申请公布日期
1933.02.14
申请号
US19300464207
申请日期
1930.06.27
申请人
L. A. YOUNG SPRING & WIRE CORPORATION
发明人
STACKHOUSE GEORGE A.
分类号
A47C23/053
主分类号
A47C23/053
代理机构
代理人
主权项
地址
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