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Individual
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Priority to ES98401UpriorityCriticalpatent/ES98401Y/en
Publication of ES98401UpublicationCriticalpatent/ES98401U/en
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Publication of ES98401YpublicationCriticalpatent/ES98401Y/en
Improved drawing tool, essentially characterized by comprising a handle that is threaded to a base part, conductive of the tracer piece of changeable type, which is lenticular and profile suitable for each use, arranged on a shaft crazy transverse, on which it revolves when sliding on paper, taking the ink from a spongy material located at the base of the load and with which it is in tangential contact. (Machine-translation by Google Translate, not legally binding)
Improvements in the construction of manual machines rectifier-sharpeners of flat surfaces. (Machine-translation by Google Translate, not legally binding)