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发明名称
COIL SPRINGS FOR CUSHIONS, MATTRESSES, AND THE LIKE
摘要
申请公布号
CA561839(A)
申请公布日期
1958.08.12
申请号
CAD561839
申请日期
申请人
SPRING UNIT DEVELOPMENT CO.
发明人
DAVID I. LEVINE
分类号
主分类号
代理机构
代理人
主权项
地址
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