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经营范围
发明名称
Breath deflector
摘要
A breath deflector comprised of a surface sheet having end edges and side edges divided into four areas by three folding lines connecting the side edges of the surface sheet wherein the four areas are foldably connected to each other.
申请公布号
US4016919(A)
申请公布日期
1977.04.12
申请号
US19740521748
申请日期
1974.11.07
申请人
ZMIJEWSKI, EMMA
发明人
ZMIJEWSKI, EMMA
分类号
A47C21/00;(IPC1-7):A47C21/00
主分类号
A47C21/00
代理机构
代理人
主权项
地址
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