DIFF Subgroup
H01R 39/20 characterised by the material thereof
Introduced: September 1968
Full Title
Rotary current collectors, distributors or interrupters > Details > Contacts for co-operation with commutator or slip-ring, e.g. contact brush > characterised by the material thereof
IPC and CPC are identically structured here. All 1 subcodes exist in both systems.
Child Classifications
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