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经营范围
发明名称
Surgical mask
摘要
申请公布号
US3216415(A)
申请公布日期
1965.11.09
申请号
US19620221237
申请日期
1962.09.04
申请人
CORNING GLASS WORKS
发明人
LITTLETON JOSEPH C.
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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