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the device based on the external pressure of the front doors of homes which pressure, puts in the movement of levers, ending with an auction.that, in turn, is moving a disk or tape recorder on which is engraved the barking of dogs for the purpose, to keep thieves, etc.
the device based on the external pressure of the front doors of homes which pressure, puts in the movement of levers, ending with an auction.that, in turn, is moving a disk or tape recorder on which is engraved the barking of dogs for the purpose, to keep thieves, etc.