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Marchal Armand Evelyne
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Marchal Armand Evelyne
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Application filed by Marchal Armand EvelynefiledCriticalMarchal Armand Evelyne
Priority to ES1969147439UpriorityCriticalpatent/ES147439Y/en
Publication of ES147439UpublicationCriticalpatent/ES147439U/en
Application grantedgrantedCritical
Publication of ES147439YpublicationCriticalpatent/ES147439Y/en
Improved didactic toy, characterized essentially because it is constituted, at least by a set of three types of unitary elements, of which a grouping of elements of shorter length coincides exactly with the length of the intermediate type, and a grouping of a determined number of this the intermediate type of unit elements coincides exactly with the length of the largest element, so that the latter corresponds to a measure within the decimal scale, while the other elements correspond to subdivisions of said measure. (Machine-translation by Google Translate, not legally binding)
Procedure for carrying out the reading of a counting scale with various elements of counting. (Machine-translation by Google Translate, not legally binding)