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经营范围
发明名称
Apparatus for freshening air in dwelling rooms or other chambers
摘要
申请公布号
US2066540(A)
申请公布日期
1937.01.05
申请号
US19340737019
申请日期
1934.07.26
申请人
ROBERT RUTLEDGE
发明人
RUTLEDGE ROBERT
分类号
F24F6/04
主分类号
F24F6/04
代理机构
代理人
主权项
地址
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