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METHOD AND DEVICE FOR THE FOLDED OR FLUSHED CONNECTION OF A PIPE TO A CLOSING PART
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METHOD FOR THE FOLDED OR BALANCED CONNECTION OF A PIPE TO A TERMINAL AND DEVICE, IN PARTICULAR FOR CARRYING OUT THIS METHOD
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METHOD AND DEVICE FOR THE FLUSHED ASSEMBLY OF A PIPE PIECE HAVING A BEND
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Automatic controller for natural or forced convection electric heater - uses triacs supplying both heater and fan motor to control temperature of room
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