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Hygiene device for toilets
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Storm-guard for motor vehicles
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METHOD AND DEVICE FOR PURIFYING AIR WITH TOXIC GASES
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Process and device for the provision of ammonia in a diazotype machine in which the image development takes place using ammonia
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Shadow station for model railways
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Drinks-mixing vessel
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METHOD AND DEVICE FOR CLEANING POLLUTED FLUIDS
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DEVICE FOR THE ODOR RESTORATION OF AIR WITH A SMELLING COMPONENT
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Theft alarm device
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Electrostatic filtration device for gas cleaning
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Method and electrostatic filter device for purifying gases.
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Electrostatic gas purification using filter medium - with the filter placed between the ionised gas and one electrode
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Apparatus to transfer heat or refrigerant
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Electrostatic gas purification using filter medium - with the filter placed between the ionised gas and one electrode
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Heat exchange system with heat pump - has counterflow heat exchange contact to transmit heat or refrigerating effect
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Method to transfer heat or refrigerant and heat pump for practical application of this method
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Combined heat pump and refrigeration system - uses two liquids in outside and inside air contact to control evaporator and condenser
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Air conditioning methods and apparatus
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Combined heat pump and refrigeration system - uses two liquids in outside and inside air contact to control evaporator and condenser
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Air conditioning system operation - has refrigerant mixed with low pressure air to produce working medium
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