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发明名称
Protective device
摘要
申请公布号
US2272833(A)
申请公布日期
1942.02.10
申请号
US19400344950
申请日期
1940.07.11
申请人
DOCKSON CHARLES H
发明人
DOCKSON CHARLES H.
分类号
A61F9/02
主分类号
A61F9/02
代理机构
代理人
主权项
地址
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