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发明名称
Combined respirator and face shield
摘要
申请公布号
US2740400(A)
申请公布日期
1956.04.03
申请号
US19540426767
申请日期
1954.04.30
申请人
WESTERN ELECTRIC COMPANY, INCORPORATED
发明人
WINES WILLIAM B.
分类号
A61F9/02;A62B18/00
主分类号
A61F9/02
代理机构
代理人
主权项
地址
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