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发明名称
Supporting pad
摘要
申请公布号
US1918022(A)
申请公布日期
1933.07.11
申请号
US19280283052
申请日期
1928.06.05
申请人
FRAIM DREY
发明人
DREY FRAIM
分类号
A61F5/30
主分类号
A61F5/30
代理机构
代理人
主权项
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