ES265041A3 - Some improvements in the drive heads of punta retractable writing instruments (Machine-translation by Google Translate, not legally binding)
- Google Patents
Some improvements in the drive heads of punta retractable writing instruments (Machine-translation by Google Translate, not legally binding)
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FREIXAS PLENSA PILAR
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FREIXAS PLENSA PILAR
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Priority to ES0265041ApriorityCriticalpatent/ES265041A3/en
Publication of ES265041A3publicationCriticalpatent/ES265041A3/en
Improvements in the drive heads of the retractable tip writing instruments, essentially characterized by having on the upper part of the envelope of the writing instruments, a hollow cylindrical piece pressing through a flange, on the ring of the fastener and in which a sliding rod having an intermediate narrowing and an end conical area of decreasing diameter is housed inside, the end of said area being flat and acting on the tube carrying the writing tip. (Machine-translation by Google Translate, not legally binding)
ES0265041A1961-02-201961-02-20Some improvements in the drive heads of punta retractable writing instruments (Machine-translation by Google Translate, not legally binding)
ExpiredES265041A3
(en)
Improvements in the construction of stylographic feathers with a disposable hollow embolish in the rear end of the handle (Machine-translation by Google Translate, not legally binding)