U.S. federal trademark · Serial No. 73410740 · Reg. No. 1303574
Filters for Gas Developing Materials and Fluids-Namely, for Air,[ Gases], Fuels,[ Combustible Materials ]and Oils, Filter Inserts, Comprising Porous Materials-Namely, [Paper, Pulpboards, Asbestos], Felt, [Siliceous, Ceramic Materials,] Also as Metallic, Natural and Synthetic Fiber, [Webs,] Fabrics [and Knittings,] and Their Parts
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