{HEAD ~ The iron} is characterised in that said ventilation circuit comprises a pipe which has a small cross section, is introduced into the rear part of the reservoir and is extended by {TAIL ~ a hollow end element} whose cross section is greater and which extends downwards and is provided with an opening in the lower part thereof 
{ HEAD ~ The iron } is characterised in that said ventilation circuit comprises a pipe which has a small cross section , is introduced into the rear part of the reservoir and is extended by { TAIL ~ a hollow end element } whose cross section is greater and which extends downwards and is provided with an opening in the lower part thereof
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