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Class Information
Number: 174/52.1
Name: Electricity: conductors and insulators >
Description:

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	60
174/2	Lightning protection	75
174/32	Anti-inductive structures	87
174/37	Underground	106
174/40R	Overhead	116
174/46	Handles	23
174/47	Combined fluid conduit and electrical conductor	302
174/480	Wall mounted	170
174/4R	Air terminals	20
174/50	Boxes and housings	1,126
174/5R	Electric shock hazard protective devices	103
174/6	Earth grounds	89
174/650	Feedthrough or bushing	172
174/66	Covers or face plates	645
174/68.1	Conduits, cables or conductors	362
174/8	With fluids or vacuum	10
174/DIG.1	Anti-tracking	16
174/DIG.10	Bushing with current transformers	7
174/DIG.11	Zipper tubes	19
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