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发明名称
Flexible spring pad
摘要
申请公布号
US1897836(A)
申请公布日期
1933.02.14
申请号
US19320589086
申请日期
1932.01.27
申请人
BRISTOL GEORGE W
发明人
BRISTOL GEORGE W.
分类号
D06F83/00
主分类号
D06F83/00
代理机构
代理人
主权项
地址
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