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.)
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Aiscondel SA
Original Assignee
Aiscondel SA
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Filing date
Publication date
Application filed by Aiscondel SAfiledCriticalAiscondel SA
Priority to ES0040344UpriorityCriticalpatent/ES40344Y/en
Publication of ES40344UpublicationCriticalpatent/ES40344U/en
Application grantedgrantedCritical
Publication of ES40344YpublicationCriticalpatent/ES40344Y/en
New apparatus for multiplication, comprising: a band, endless flexible in which is inscribed a Pythagorean table, which is lodged in a special form inside an elongated box formed by two pieces that are joined, by the parallel midplane to its larger faces and equipped with an opening for the appearance of one of the factors and another one for which the series of results corresponding to said factor appears, carrying an ordered sequence of digit numbers inscribed in said box, each number corresponding to a column of the table; and a sliding lid or slider provided with openings for signaling the second factor and for reading the product between the two factors. (Machine-translation by Google Translate, not legally binding)
ES0040344U1954-02-091954-02-09
Apparatus for multiplying
ExpiredES40344Y
(en)