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.)
MACAYA DE RIGALT MARIA
Original Assignee
MACAYA DE RIGALT MARIA
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Filing date
Publication date
Application filed by MACAYA DE RIGALT MARIAfiledCriticalMACAYA DE RIGALT MARIA
Priority to ES88557UpriorityCriticalpatent/ES88557Y/en
Publication of ES88557UpublicationCriticalpatent/ES88557U/en
Application grantedgrantedCritical
Publication of ES88557YpublicationCriticalpatent/ES88557Y/en
Instrument to draw, which is characterized by being formed by a rule provided with a hole for a writer device, one of whose faces has two graduated scales that start at the center of the aforementioned hole, while the other is equipped with strokes that determine the angular values of a semicircle whose diameter corresponds to one of the edges of the rule in which the center reference is found, this sliding rule being in a cursor provided with two indices facing the scales so that they determine equivalent values between both , of a device of fixation on the rule, and of a center point for the drawing of circumferences, located in the same transverse plane as the two indicator signs. (Machine-translation by Google Translate, not legally binding)
ES88557U1961-07-241961-07-24
Instrument for drawing
ExpiredES88557Y
(en)