CPC Main Group
F16N 21/00 Conduits; Junctions (in general F16L); Fittings for lubrication apertures
4 direct subcodes
Child Classifications
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- F16N 21/02 Lubricating nipples
- F16N 21/04 Nozzles for connection of lubricating equipment to nipples
- F16N 21/06 Covering members for nipples, conduits or apertures