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Individual
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Individual
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Application filed by IndividualfiledCriticalIndividual
Priority to ES99514UpriorityCriticalpatent/ES99514Y/en
Publication of ES99514UpublicationCriticalpatent/ES99514U/en
Application grantedgrantedCritical
Publication of ES99514YpublicationCriticalpatent/ES99514Y/en
Improved abrasive crown, essentially characterized by the fact that on both sides it has lines or grooves tangential to its core, of which those corresponding to one face are arranged in the opposite direction to the other, so that when the piece is stuck to a plate of iron or similar and to produce the wear of the lines relative to the upper side of the lock, the new tangential lines of the lower face appear, continuing the work of the crown without alteration. (Machine-translation by Google Translate, not legally binding)