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发明名称
Spring assembly
摘要
申请公布号
US2052982(A)
申请公布日期
1936.09.01
申请号
US19350054778
申请日期
1935.12.16
申请人
LISSON & MELEN COMPANY
发明人
LEVINE DAVID I.
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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