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发明名称
WINDOW VENTILATOR SCREEN
摘要
申请公布号
CA442525(A)
申请公布日期
1947.07.01
申请号
CAD442525
申请日期
申请人
FREDERICK P. EMMONS JR.;FREDERICK P. EMMONS SR.
发明人
FREDERICK P. EMMONS SR.;FREDERICK P. EMMONS JR.
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主分类号
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