-
Breathing mask
-
Patent number 6,102,040
-
Issue date Aug 15, 2000
-
Amad Tayebi
-
A41 - WEARING APPAREL
-
Respirator filter
-
Patent number 5,992,414
-
Issue date Nov 30, 1999
-
Mine Safety Appliances Company
-
Amad Tayebi
-
A62 - LIFE-SAVING FIRE-FIGHTING
-
Breathing mask
-
Patent number 5,673,690
-
Issue date Oct 7, 1997
-
Better Breathing, Inc.
-
Amad Tayebi
-
A41 - WEARING APPAREL