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发明名称
Mask relief valve for oxygen breathing systems
摘要
申请公布号
US2530536(A)
申请公布日期
1950.11.21
申请号
US19450587536
申请日期
1945.04.10
申请人
THE LINDE AIR PRODUCTS COMPANY
发明人
OLDHAM SAMUEL R.;JACOBSSON WILGOT J.;HOFFMAN JAMES A.
分类号
A62B9/02
主分类号
A62B9/02
代理机构
代理人
主权项
地址
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