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CN102595982A
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Improved portafilter for espresso coffee machines
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CN102595984A
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Improved method and machine for preparing espresso coffee
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NZ589631A
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Espresso coffee machine with selection device for communicating the infusion receptacle with a hot water feed pipe, an outlet pipe or both.
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US5598764A
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Espresso coffee machine for the differentiated application of the water pressure and for preinfusion in the dispensing group
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IT9009463D0
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A machine for preparing a coffee or other infusion using pressurized water and having an infusion antechamber
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