F16K 27/0209 — IPC vs CPC Diff | Patent Classification Explorer

DIFF Subgroup

F16K 27/0209

Full Title

Construction of housing (methods for welding housings B23K); Use of materials therefor > of lift valves (for reducing the flow resistance of screw-spindle lift-valves F16K1/06)

Of 2 combined children, 0 exist in both systems.

2 codes are CPC-only extensions.

This code exists only in CPC.

Diff view requires codes present in both systems.

View in CPC →