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发明名称
Mask for the prevention and relief of allergic respiratory complaints
摘要
申请公布号
US2067822(A)
申请公布日期
1937.01.12
申请号
US19360073923
申请日期
1936.04.11
申请人
BIEDERMAN JOSEPH B
发明人
BIEDERMAN JOSEPH B.
分类号
A61M16/10
主分类号
A61M16/10
代理机构
代理人
主权项
地址
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Mask e.g. nasal mask, for e.g. respiration, has structural parts such as mask base body, connecting piece and securing ring, formed in modular system and developed such that structural parts are used for different types of masks
