ข้อมูลสัญลักษณ์จำแนกการออกแบบผลิตภัณฑ์ระหว่างประเทศ


รหัส / code คำอธิบาย / code name Version
H04Q0001060000 Cable ducts or mountings specially adapted for exchange installations 1
H04Q0001080000 Frames or mounting racks for relays; Accessories therefor 1
H04Q0001100000 Exchange station construction 1
H04Q0001120000 Arrangements of multiple bars with or without pivotable frames 1
H04Q0001140000 Distribution frames 1
H04Q0001160000 Wiring arrangements for selector switches or relays in frames 1
H04Q0001180000 Electrical details 1
H04Q0001200000 Testing circuits or apparatus; Circuits or apparatus for detecting, indicating, or signalling faults or troubles 1
H04Q0001220000 Automatic arrangements 1
H04Q0001240000 for connection devices 1
H04Q0001260000 for signalling trouble in unoccupied sub-exchanges 1
H04Q0001280000 Current-supply circuits or arrangements for selection equipment at exchanges 1
H04Q0001300000 Signalling arrangements; Manipulation of signalling currents (multiplex systems providing for calling or supervisory signals H04J0001140000, H04J0003120000) 1
H04Q0001320000 using trains of dc pulses (H04Q0001390000 takes precedence);; 1
H04Q0001340000 Impulse regenerators with mechanical or other non-electrical marking arrangements 1