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经营范围
发明名称
Spring construction
摘要
申请公布号
US2886311(A)
申请公布日期
1959.05.12
申请号
US19550504627
申请日期
1955.04.28
申请人
AMERICAN METAL PRODUCTS COMPANY
发明人
FLINT HYLAND C.
分类号
A47C7/30
主分类号
A47C7/30
代理机构
代理人
主权项
地址
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