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经营范围
发明名称
Surgical mask
摘要
A surgical mask, or other face covering, including a structure effective to prevent a pair of spectacles from sliding down along the nose of the wearer.
申请公布号
US4312338(A)
申请公布日期
1982.01.26
申请号
US19800113578
申请日期
1980.01.21
申请人
GLASSMAN, JACOB A.
发明人
GLASSMAN, JACOB A.
分类号
A41D13/11;(IPC1-7):A61F9/04
主分类号
A41D13/11
代理机构
代理人
主权项
地址
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