CPC Subgroup
F21V 11/16 using sheets without apertures, e.g. fixed
Full Title
Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 (characterised by cooling arrangements F21V29/502) > using sheets without apertures, e.g. fixed
1 direct subcode
Child Classifications
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- F21V 11/18 movable, e.g. flaps, slides