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发明名称
Ventilating apparatus
摘要
申请公布号
US1935305(A)
申请公布日期
1933.11.14
申请号
US19320585239
申请日期
1932.01.07
申请人
PERRY WEST
发明人
WEST PERRY
分类号
F28D1/02
主分类号
F28D1/02
代理机构
代理人
主权项
地址
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