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Class Information
Number: 174/4
Name: Electricity: conductors and insulators >

Sub-classes under this class:

Class Number Class Name Patents
174/ Anti-inductive structures (174/32) 0
174/ Boxes and housings (174/50) 0
174/1 Miscellaneous 19
174/137R Insulators 101
174/2 Lightning protection 92
174/32 Anti-inductive structures 97
174/37 Underground 117
174/40R Overhead 149
174/46 Handles 26
174/47 Combined fluid conduit and electrical conductor 330
174/480 Wall mounted 253
174/4R Air terminals 24
174/50 Boxes and housings 1,624
174/5R Electric shock hazard protective devices 132
174/6 Earth grounds 114
174/650 Feedthrough or bushing 296
174/66 Covers or face plates 838
174/68.1 Conduits, cables or conductors 536
174/8 With fluids or vacuum 11
174/DIG.1 Anti-tracking 16
174/DIG.10 Bushing with current transformers 7
174/DIG.11 Zipper tubes 20
174/DIG.12 Helical preforms 12
174/DIG.13 High voltage cable (e.g., above 10kv, corona prevention, etc.) 16
174/DIG.2 Ballasts 47
174/DIG.34 Pcb in box or housing 93
174/DIG.35 Box or housing mounted on substrate or pcb 35
174/DIG.7 Sodium conductors, connectors, etc. 6
174/DIG.8 Shrinkable tubes, etc. 525
174/DIG.9 Pull-out cabinet or drawer with retractable cable 24

Patents under this class:

Patent Number Title Of Patent Date Issued

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