ES287723A1 - Electrical appliance for the teaching of arithmetic rules (Machine-translation by Google Translate, not legally binding) - Google Patents

Electrical appliance for the teaching of arithmetic rules (Machine-translation by Google Translate, not legally binding)

Info

Publication number
ES287723A1
ES287723A1 ES287723A ES287723A ES287723A1 ES 287723 A1 ES287723 A1 ES 287723A1 ES 287723 A ES287723 A ES 287723A ES 287723 A ES287723 A ES 287723A ES 287723 A1 ES287723 A1 ES 287723A1
Authority
ES
Spain
Prior art keywords
teaching
translation
machine
legally binding
google translate
Prior art date
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.)
Expired
Application number
ES287723A
Other languages
Spanish (es)
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to ES287723A priority Critical patent/ES287723A1/en
Publication of ES287723A1 publication Critical patent/ES287723A1/en
Expired legal-status Critical Current

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Abstract

Electrical apparatus for the teaching of arithmetic rules, which is characterized by comprising a rectangular parallelepiped body, in front of which a plurality of regularly spaced windows are foreseen, through which the results of the operations carried out are made visible , the number of these windows being the necessary to enable the combination of operations to be used plus one that indicates the base figure with which it operates, highlighting the position of this window with respect to those of the results; Likewise, the front of this device has a control that extends laterally a blade that, when turning, when acting on the control, frames in a hole made at its end, the figure with which the base figure is intended to operate, remaining limited the rotation of this blade by two end stops. (Machine-translation by Google Translate, not legally binding)
ES287723A 1963-05-07 1963-05-07 Electrical appliance for the teaching of arithmetic rules (Machine-translation by Google Translate, not legally binding) Expired ES287723A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES287723A ES287723A1 (en) 1963-05-07 1963-05-07 Electrical appliance for the teaching of arithmetic rules (Machine-translation by Google Translate, not legally binding)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES287723A ES287723A1 (en) 1963-05-07 1963-05-07 Electrical appliance for the teaching of arithmetic rules (Machine-translation by Google Translate, not legally binding)

Publications (1)

Publication Number Publication Date
ES287723A1 true ES287723A1 (en) 1963-07-16

Family

ID=66586464

Family Applications (1)

Application Number Title Priority Date Filing Date
ES287723A Expired ES287723A1 (en) 1963-05-07 1963-05-07 Electrical appliance for the teaching of arithmetic rules (Machine-translation by Google Translate, not legally binding)

Country Status (1)

Country Link
ES (1) ES287723A1 (en)

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