Blades; Blade-carrying rotors

Introduced: September 1968

Full Title

Machines or engines of reaction type; Parts or details peculiar thereto > Blades; Blade-carrying rotors

CPC subdivides this area 5x more granularly than IPC with 4 additional codes.

4 codes are CPC-only extensions.

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F03B 3/121 +1 CPC CPC only CPC only
F03B 3/125 CPC only CPC only
F03B 3/126 CPC only CPC only
F03B 3/128 CPC only CPC only
F03B 3/14 Rotors having adjustable blades +1 CPC IPC+CPC Available in IPC and CPC