|
DE664106C
|
|
Safety valve for hydraulically operated diaphragm pumps
|
|
DE661717C
|
|
Device for stepless and lossless control of piston pumps
|
|
DE644421C
|
|
Conveyor device operated with compressed air for liquids
|
|
DE675339C
|
|
Centrifugal pump with a water ring pump as a ventilation pump
|
|
DE658469C
|
|
Self-priming centrifugal pump with deaeration pump
|
|
DE658468C
|
|
Device to facilitate the suction of a ventilation pump that works in parallel with a centrifugal pump
|
|
DE667430C
|
|
Pump system, consisting of a centrifugal pump and a ventilation pump connected in parallel to this
|
|
DE646368C
|
|
Shut-off wedge for gate valve with laterally attached guide surfaces and a hole used to accommodate the valve spindle
|
|
DE577401C
|
|
Diaphragm pump
|
|
DE663936C
|
|
Shut-off wedge for gate valve
|
