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发明名称
Protective device
摘要
申请公布号
US2904041(A)
申请公布日期
1959.09.15
申请号
US19570635766
申请日期
1957.01.23
申请人
BROWN ALBERT L
发明人
BROWN ALBERT L.
分类号
A61F6/04
主分类号
A61F6/04
代理机构
代理人
主权项
地址
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