H01H 33/56 Gas reservoirs
Introduced: September 1968
Full Title
Full titles differ between systems:
High-tension or heavy-current switches with arc-extinguishing or arc-preventing means > Details > Cases; Reservoirs, tanks, piping or valves, for arc-extinguishing fluid; Accessories therefor, e.g. safety arrangements, pressure relief devices > Gas reservoirs
High-tension or heavy-current switches with arc-extinguishing or arc-preventing means > Details > Cases (for switchgear H02B1/26); Reservoirs, tanks, piping or valves, for arc-extinguishing fluid; Accessories therefor, e.g. safety arrangements, pressure relief devices > Gas reservoirs
Of 7 combined children, 0 exist in both systems.
7 codes are CPC-only extensions.
Note: 3 CPC extensions are marked as secondary classification only.
Child Classifications
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