Metal windows belong to Trademark Class 6: 0608 Metal accessories for furniture and doors and windows, Metal door latches 060022, Metal bolts 06022, Metal rope buckles for windows 060035, Metal window hooks 060035, Metal dampers for doors 060036 , metal hinge 060068, metal safety chain 060071, metal hinge connector 060073, hanging window pulley 060075, small window pulley 060075, metal wall bolt 060087, metal wall plug 060087, window door bolt 060104, copper ring 060110, metal window bolt 060125, metal accessories for windows 060130, metal equipment for windows 060130, door closer (non-electric) 060135, door spring (non-electric) 060135, metal bed corner roller 060166, door knocker 060180, furniture metal casters 060187, furniture metal casters 060187, metal Clothes hook 060202, metal door handle 060216, door latch 060220, latch (for room) 060247, spherical metal handle 060301, metal wall hook for pipe 060312, non-electric door opener 060320, metal hinge 060327, small metal pulley for sliding door 060348, metal coat hooks 060352, metal fixed towel dispensers 060358, metal accessories for furniture 060380, metal furniture parts 060380, metal components for beds 060393, metal accessories for beds 060393.