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BRPI0702133A2
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Water preheating system
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BR9500994A
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Gas water heater with water pressure ignition
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BR9405041A
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Inorganic anti-mold material and its method of production
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BR9404636A
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Combustion system safety device
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BR9301031A
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Combustion ignition control device
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BR9300959A
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Instant gas water heater with feed pump and its switch
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BR9204471A
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Temperature control device through the temperature detector element
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BR9203602A
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GAS HOT WATER FEEDER
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BR9203424A
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Water heater temperature control device
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BR9006623A
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Ignition circuit
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BR9006254A
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Ignition circuit
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BR8606348A
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Gas valve
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BR8604364A
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Outlet base (female), outlet pin (male) and their coupling system
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BR8405073A
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Improvement in gas recording mechanism for gas
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BR8405002A
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Improvement in the steel of activation of the stove gas record
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BR8404838A
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Gas recording performances
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BR8404873A
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Gas registration
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