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ข้อมูลสัญลักษณ์จำแนกการออกแบบผลิตภัณฑ์ระหว่างประเทศ

รหัส / code คำอธิบาย / code name Version
H01F0017080000 Loading coils for telecommunication circuits 1
H01F0019000000 Fixed transformers or mutual inductances of the signal type (H01F0036000000 takes precedence);; 1
H01F0019020000 Audio-frequency transformers or mutual inductances, i.e. not suitable for handling frequencies considerably beyond the audio range 1
H01F0019040000 Transformers or mutual inductances suitable for handling frequencies considerably beyond the audio range 1
H01F0019060000 Broad-band transformers, e.g. suitable for handling frequencies well down into the audio range 1
H01F0019080000 Transformers having magnetic bias, e.g. for handling pulses 1
H01F0021000000 Variable inductances or transformers of the signal type (H01F0036000000 takes precedence);; 1
H01F0021020000 continuously variable, e.g. variometers 1
H01F0021040000 by relative movement of turns or parts of windings 1
H01F0021060000 by movement of core or part of core relative to the windings as a whole 1
H01F0021080000 by varying the permeability of the core, e.g. by varying magnetic bias 1
H01F0021100000 by means of a movable shield 1
H01F0021120000 discontinuously variable, e.g. tapped 1
H01F0027000000 Details of transformers or inductances, in general 1
H01F0027020000 Casings 1
จำนวนรหัสข้อมูล 15 จาก 73902