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SAFON CALBE LUIS
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SAFON CALBE LUIS
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Application filed by SAFON CALBE LUISfiledCriticalSAFON CALBE LUIS
Priority to ES0023734UpriorityCriticalpatent/ES23734Y/en
Publication of ES23734UpublicationCriticalpatent/ES23734U/en
Application grantedgrantedCritical
Publication of ES23734YpublicationCriticalpatent/ES23734Y/en
"A PERFECTED CALCULATOR CASE" characterized by being constituted by a cylinder that carries on its surface the result of a fundamental arithmetic operation and contains a longitudinal hole of appropriate section to allow the passage through its interior of a shaft that drags in its turn to the cylinder , this in turn having a movement: forward and backward along the length of the axis, or part of it. (Machine-translation by Google Translate, not legally binding)