Surgical mask
United States Patent 3288138
US Patent References:
/0752114.html
- - 0752114

/1166462.html
- - 1166462

Sanitary mask
- - 1491674

Surgical mask
- - 2149067

Surgical mask
- - 2227667


Inventors:
Louis, Sachs
Publication Date:
11/29/1966
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Assignee:
Louis, Sachs
Primary Class:
128/863
Other Classes:
D24/110.100
International Classes:
A41D13/11; A41D13/05
US Patent References:
2265529Surgical mask
3015105Safety face mask
3038470Facial mask
Foreign References:
GB134432A