Note(s)
In this sub-class, the term "ice" means any frozen liquid and is to be understood as also covering frozen semiliquids or pasty substances [2]
In this sub-class, the term "device" refers to an enclosed space to be cooled, such devices being associated either with refrigerating machinery, e.g. as in a refrigerator, or with other cold sources, e.g. as in an ice-box.