An effervescence keeper is shown as an elongated body for placement into an open container having a quantity of carbonated liquid. The effervescence keeper includes a stopper for supporting the effervescence keeper on the neck of the container and adjusting holes or slots for adjusting the position of the stopper relative to its displacement along the longitudinal axis of the effervescence keeper.

 
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> Axial fan motor including a casing of laminated metal plates

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