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Individual
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Individual
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Application filed by IndividualfiledCriticalIndividual
Priority to ES0028103UpriorityCriticalpatent/ES28103Y/en
Publication of ES28103UpublicationCriticalpatent/ES28103U/en
Application grantedgrantedCritical
Publication of ES28103YpublicationCriticalpatent/ES28103Y/en
By a wood drill bit, characterized by being essentially formed by a cylindrical main body, on the periphery of which three cuts have been made in a vertical direction and in a triangular shape, where both blades are housed in a parallelepiped shape, and in the resulting chamfers of these cuts, in a perpendicular direction, have a threaded hole in each, to place a screw, which regulates and holds the corresponding blade by means of a slot that they have, also carrying said main body three holes for aeration, counterbalanced with with respect to the triangle formed by the blades. (Machine-translation by Google Translate, not legally binding)
ES0028103U1951-09-181951-09-18
Wood tenon bit
ExpiredES28103Y
(en)