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发明名称
Ventilator
摘要
申请公布号
US1949877(A)
申请公布日期
1934.03.06
申请号
US19310553657
申请日期
1931.07.28
申请人
POOLE JOHN C
发明人
POOLE JOHN C.
分类号
C03B7/01;E06B7/04
主分类号
C03B7/01
代理机构
代理人
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