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发明名称
Bedspring
摘要
申请公布号
US1933843(A)
申请公布日期
1933.11.07
申请号
US19290412389
申请日期
1929.12.07
申请人
THORN THOMPSON
发明人
CANE GORDON F.
分类号
A47C23/057
主分类号
A47C23/057
代理机构
代理人
主权项
地址
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