ES243053Y - DEVICE FOR THE PRACTICE OF ARITHMETIC OPERATIONS. - Google Patents

DEVICE FOR THE PRACTICE OF ARITHMETIC OPERATIONS.

Info

Publication number
ES243053Y
ES243053Y ES1979243053U ES243053U ES243053Y ES 243053 Y ES243053 Y ES 243053Y ES 1979243053 U ES1979243053 U ES 1979243053U ES 243053 U ES243053 U ES 243053U ES 243053 Y ES243053 Y ES 243053Y
Authority
ES
Spain
Prior art keywords
practice
arithmetic operations
arithmetic
operations
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
ES1979243053U
Other languages
Spanish (es)
Other versions
ES243053U (en
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 filed Critical
Priority to ES1979243053U priority Critical patent/ES243053Y/en
Publication of ES243053U publication Critical patent/ES243053U/en
Application granted granted Critical
Publication of ES243053Y publication Critical patent/ES243053Y/en
Expired legal-status Critical Current

Links

ES1979243053U 1979-05-03 1979-05-03 DEVICE FOR THE PRACTICE OF ARITHMETIC OPERATIONS. Expired ES243053Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES1979243053U ES243053Y (en) 1979-05-03 1979-05-03 DEVICE FOR THE PRACTICE OF ARITHMETIC OPERATIONS.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES1979243053U ES243053Y (en) 1979-05-03 1979-05-03 DEVICE FOR THE PRACTICE OF ARITHMETIC OPERATIONS.

Publications (2)

Publication Number Publication Date
ES243053U ES243053U (en) 1980-01-16
ES243053Y true ES243053Y (en) 1980-06-16

Family

ID=8402694

Family Applications (1)

Application Number Title Priority Date Filing Date
ES1979243053U Expired ES243053Y (en) 1979-05-03 1979-05-03 DEVICE FOR THE PRACTICE OF ARITHMETIC OPERATIONS.

Country Status (1)

Country Link
ES (1) ES243053Y (en)

Also Published As

Publication number Publication date
ES243053U (en) 1980-01-16

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ES243053Y (en) DEVICE FOR THE PRACTICE OF ARITHMETIC OPERATIONS.