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EP0678695A2
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Brazeless end connector for pipes for fluid and a heat exchanger which uses this connector.
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EP0682215A1
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A tight union for connecting a plate to piping
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ITMI930426A1
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Tight connection for a tube plate
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ITMI913462D0
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Domestic water heating device, particularly for boilers of what is known as the combined type for domestic use
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ITMI912462A1
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Turbulence-generating device for finned tube heat exchangers
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ITMI910494A1
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Method for making sealed fluid connections for heat exchangers of gas boilers
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NL8803074A
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Method for reducing the withdrawal period of the delivery of hot sanitary water by a water heater.
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