having resonance tubes

Full Title

Stirling type engines having closed regenerative thermodynamic cycles with flow controlled by volume changes > having their pistons and displacers each in separate cylinders > having resonance tubes

Of 2 combined children, 0 exist in both systems.

2 codes are CPC-only extensions.

Note: 2 CPC extensions are marked as secondary classification only.

This code exists only in CPC.

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