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.)
TORRE SIREROL VICENTE
Original Assignee
TORRE SIREROL VICENTE
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 TORRE SIREROL VICENTEfiledCriticalTORRE SIREROL VICENTE
Priority to ES0061428UpriorityCriticalpatent/ES61428Y/en
Publication of ES61428UpublicationCriticalpatent/ES61428U/en
Application grantedgrantedCritical
Publication of ES61428YpublicationCriticalpatent/ES61428Y/en
Calculator for complex quantities consisting of a device consisting of two concentric circles capable of rotating on the same center and of slightly greater diameter the hidden than the one that remains visible and a reglilla of a substantially rectangular shape able to rotate by tilting on one of its ends around from the center common to the two disks being said transparent ruler and provided with a transparent cursor on which a reference line is engraved. (Machine-translation by Google Translate, not legally binding)
ES0061428U1957-08-081957-08-08
Calculator for complex quantities
ExpiredES61428Y
(en)