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经营范围
发明名称
Respirator speaking diaphragm and exhalation valve unit
摘要
申请公布号
US3109425(A)
申请公布日期
1963.11.05
申请号
US19600012859
申请日期
1960.03.04
申请人
THE ELECTRIC STORAGE BATTERY COMPANY
发明人
GONGOLL VERNON F.;KLINGER GUY G.
分类号
A62B18/10
主分类号
A62B18/10
代理机构
代理人
主权项
地址
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