U.S. federal trademark · Serial No. 79185248 · Reg. No. 5084409
Apparatus and devices for the cooling, heating and heat treatment of materials, namely, industrial cooling, heating and heat treatment apparatus, namely, cooling tunnels, refrigerating chambers and gas coolers and gas heaters, in particular for the preparation and treatment of metal parts; regulating and safety accessories for gas apparatus, namely, cryogenic freezing chambers and tunnels
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