Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by IndividualfiledCriticalIndividual
Priority to ES0072891UpriorityCriticalpatent/ES72891Y/en
Publication of ES72891UpublicationCriticalpatent/ES72891U/en
Application grantedgrantedCritical
Publication of ES72891YpublicationCriticalpatent/ES72891Y/en
An improved piston for fountain pens, essentially characterized by having in its lower part, a recess in which an elastic ring is housed that keeps the walls of the piston in contact with those of the cylinder. (Machine-translation by Google Translate, not legally binding)
ES0072891U1959-03-261959-03-26
Piston perfected for stlographic feathers
ExpiredES72891Y
(en)