F01L 3/22 Valve-seats not provided for in preceding subgroups of this group; Fixing of valve-seats
Introduced: September 1968
Title
Titles differ between systems:
IPC: Valve seats not provided for in preceding subgroups of this group; Fixing of valve seats
CPC: Valve-seats not provided for in preceding subgroups of this group; Fixing of valve-seats
Full Title
Full titles differ between systems:
Lift valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof > Valve seats not provided for in preceding subgroups of this group; Fixing of valve seats
Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof > Valve-seats not provided for in preceding subgroups of this group; Fixing of valve-seats
No child classifications to compare. This is a leaf node in both IPC and CPC.