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DIFF Subgroup
H01R 39/56

Devices for lubricating or polishing slip-rings or commutators during operation of the collector

Introduced: September 1968

Full Title

Rotary current collectors, distributors or interrupters > Details > Devices for lubricating or polishing slip-rings or commutators during operation of the collector

No child classifications to compare. This is a leaf node in both IPC and CPC.