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Priority to ES110020UpriorityCriticalpatent/ES110020Y/en
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Pneumatic piston that is characterized by being formed by two parts coupled together forming a form substantially similar to a pistol whose upper part has at its end corresponding to the barrel attached to the rear shank of a tool held by means of a coil spring that retains it elastically in its position and whose rear end protrudes inside the said support part of internal cylindrical shape and which is accommodated displaceable a free piston that released by the expansive force of compressed air percuses repeated voices and in continuous form against the aforementioned end of the tool determining their work. (Machine-translation by Google Translate, not legally binding)
Improvements in the nail projection hammers to be able to make several successive expulsions, without recharging the hammer (Machine-translation by Google Translate, not legally binding)