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经营范围
发明名称
Surgical mask
摘要
申请公布号
US2905173(A)
申请公布日期
1959.09.22
申请号
US19580763239
申请日期
1958.09.25
申请人
WOLD REBECCA J
发明人
WOLD REBECCA J.
分类号
A41D13/11
主分类号
A41D13/11
代理机构
代理人
主权项
地址
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