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.)
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PORVEN SAN MARTIN MANUEL
Original Assignee
PORVEN SAN MARTIN MANUEL
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Filing date
Publication date
Application filed by PORVEN SAN MARTIN MANUELfiledCriticalPORVEN SAN MARTIN MANUEL
Priority to ES0021704UpriorityCriticalpatent/ES21704Y/en
Publication of ES21704UpublicationCriticalpatent/ES21704U/en
Application grantedgrantedCritical
Publication of ES21704YpublicationCriticalpatent/ES21704Y/en
A replaceable school blackboard is characterized, characterized by carrying in all the angles of the frame or in part some fixings or screws, which allow that when breaking the slate can be replaced by another, taking advantage of the same frames and being these again, perfectly united without risks or dangers of disarticulation. (Machine-translation by Google Translate, not legally binding)
ES0021704U1949-12-161949-12-16
Replaceable school blackboard.
ExpiredES21704Y
(en)
New device made of iron and other metals, applicable to keyboard and percussion instruments (Machine-translation by Google Translate, not legally binding)