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A41D 13/11
Protective face masks, e.g. for surgical use, or for use in foul atmospheres
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Patent classification
Child Classification
A41D 13/1184
A41D 13/1161
A41D 13/1107
A41D 13/1192
Classification Type
Cooperative Patent Classification
Parent Classification
A41D 13/05
Official Website
data.epo.org/linked-d...A41D13-11
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