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发明名称
Ventilator
摘要
申请公布号
US2709402(A)
申请公布日期
1955.05.31
申请号
US19520265739
申请日期
1952.01.10
申请人
MALM EDWARD A
发明人
MALM EDWARD A.
分类号
E06B7/02
主分类号
E06B7/02
代理机构
代理人
主权项
地址
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