Description
Class F17C : VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
Subclass 3/04: Vessels not under pressure with provision for thermal insulation (thermal insulation in general F16L 59/00) by insulating layers (F17C 3/08 takes precedence)