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经营范围
发明名称
Ventilator
摘要
申请公布号
US2553001(A)
申请公布日期
1951.05.15
申请号
US19480020150
申请日期
1948.04.09
申请人
PETR JR VACLAV
发明人
JR. VACLAV PETR,
分类号
F04D33/00
主分类号
F04D33/00
代理机构
代理人
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