DIFF Subgroup
A63H 18/16 Control of vehicle drives by interaction between vehicle and track; Control of track elements by vehicles
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Highways or trackways for toys; Propulsion by special interaction between vehicle and track > Control of vehicle drives by interaction between vehicle and track; Control of track elements by vehicles
CPC:
Highways or trackways for toys (railway permanent way A63H19/30; for special railways A63H21/00); Propulsion by special interaction between vehicle and track > Control of vehicle drives by interaction between vehicle and track; Control of track elements by vehicles
Of 1 combined children, 0 exist in both systems.
1 codes are CPC-only extensions.
Note: 1 CPC extensions are marked as secondary classification only.
Child Classifications
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