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发明名称
Improvements in lung testing devices
摘要
申请公布号
GB324177(A)
申请公布日期
1930.01.23
申请号
GB19280036070
申请日期
1928.12.06
申请人
CHARLES HENRY STEVENS
发明人
分类号
A61B5/091
主分类号
A61B5/091
代理机构
代理人
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