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PCE
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DIFF Subgroup
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:

IPC:

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

CPC:

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.