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Class Information
Number: 128/201.17
Name: Surgery > Respiratory method or device > Means for keeping viewing member (e.g., eyeglass, transparent face shield, etc.) clear > Mask with porous lower filtering portion and impervious upper portion shielding user's eyeglasses from exhaled breath
Description: Subject matter including a mask with a porous lower filtering portion and an impervious upper portion shielding the user’s eyeglasses from the exhaled breath.










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