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发明名称
Flexible mattress spring structure
摘要
申请公布号
US2118297(A)
申请公布日期
1938.05.24
申请号
US19360090111
申请日期
1936.07.11
申请人
TRENTON SPRING PRODUCTS COMPANY
发明人
DOUGLAS JOHN A.
分类号
A47C27/07
主分类号
A47C27/07
代理机构
代理人
主权项
地址
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