Back pressure valves as parts of machines; Compressed air machines; Compressed air pumps; Compressors for machines; Faucets being parts of machines, engines or motors; Pumps as parts of machines, motors and engines; Pumps for machines; Valves as machine components

Pumps as parts of machines, engines and motors; pumps for machines; compressed air pumps; faucets being parts of machines, engines or motors; valves as machine components; compressors for machines; compressed air machines; pressure valves as parts of machines