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.)
Jacob Ernst Nestor
Original Assignee
Jacob Ernst Nestor
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Filing date
Publication date
Application filed by Jacob Ernst NestorfiledCriticalJacob Ernst Nestor
Priority to ES1967129968UpriorityCriticalpatent/ES129968Y/en
Publication of ES129968UpublicationCriticalpatent/ES129968U/en
Application grantedgrantedCritical
Publication of ES129968YpublicationCriticalpatent/ES129968Y/en
A mathematical toy, essentially characterized in that it comprises the arrangement of a base frame, peripherally defined by a band of greater height than the surface plane, there being a series of divisions of said plane, formed by bands of greater height than the general surface, which they form independent pictures of mathematical compositions. (Machine-translation by Google Translate, not legally binding)
ES1967129968U1967-05-181967-05-18
A MATH TOY.
ExpiredES129968Y
(en)