DIFF Subgroup Additional Only
F01M 2001/1028 Full Title
Pressure lubrication > Lubricating systems characterised by the provision therein of lubricant venting or purifying means, e.g. of filters
Of 2 combined children, 0 exist in both systems.
2 codes are CPC-only extensions.
Note: 2 CPC extensions are marked as secondary classification only.