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DE667476C
|
|
Overground water post
|
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DE655974C
|
|
Overground water post
|
|
DE657041C
|
|
Pump for generating air foam for fire extinguishing purposes
|
|
DE583164C
|
|
Ventilation device
|
|
DE664773C
|
|
Pump for generating air foam for fire extinguishing purposes
|
|
DE616632C
|
|
Pump for generating air foam for fire extinguishing purposes
|
|
DE566813C
|
|
Device to avoid dangerous pressure increases in pipes
|
|
DE608126C
|
|
Self-priming centrifugal pump
|
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DE560640C
|
|
Reversing device in the form of a piston valve for compressed air fluid delivery systems with a positively driven changeover switch
|
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DE529441C
|
|
Control for a bypass valve switched between two pipes under alternating pressures
|
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DE465192C
|
|
Centrifugal pump with a water ring pump as a ventilation pump
|
|
DE471852C
|
|
Procedure for avoiding the noise that occurs during the operation of rotary lobe pumps
|
|
DE455091C
|
|
Water ring pump with exchangeable side control plate
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DE501142C
|
|
Foot valve
|
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DE423204C
|
|
Centrifugal pump with water ring pump as a ventilation pump according to patent 392500 for fire extinguishing automobiles
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DE413772C
|
|
Fire pump
|
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DE392500C
|
|
Centrifugal pump with a water ring pump as a ventilation pump
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|
DE500756C
|
|
Shut-off device
|
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DE526779C
|
|
Centrifugal pump
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DE501143C
|
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Valve
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