ES145510Y - DIDACTIC DEVICE FOR THE PRACTICE OF ARIT-METIC OPERATIONS. - Google Patents
DIDACTIC DEVICE FOR THE PRACTICE OF ARIT-METIC OPERATIONS.Info
- Publication number
- ES145510Y ES145510Y ES1969145510U ES145510U ES145510Y ES 145510 Y ES145510 Y ES 145510Y ES 1969145510 U ES1969145510 U ES 1969145510U ES 145510 U ES145510 U ES 145510U ES 145510 Y ES145510 Y ES 145510Y
- Authority
- ES
- Spain
- Prior art keywords
- arit
- practice
- didactic device
- metic
- 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
Links
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES1969145510U ES145510Y (en) | 1969-02-11 | 1969-02-11 | DIDACTIC DEVICE FOR THE PRACTICE OF ARIT-METIC OPERATIONS. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES1969145510U ES145510Y (en) | 1969-02-11 | 1969-02-11 | DIDACTIC DEVICE FOR THE PRACTICE OF ARIT-METIC OPERATIONS. |
Publications (2)
Publication Number | Publication Date |
---|---|
ES145510U ES145510U (en) | 1969-05-16 |
ES145510Y true ES145510Y (en) | 1970-01-01 |
Family
ID=8327508
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES1969145510U Expired ES145510Y (en) | 1969-02-11 | 1969-02-11 | DIDACTIC DEVICE FOR THE PRACTICE OF ARIT-METIC OPERATIONS. |
Country Status (1)
Country | Link |
---|---|
ES (1) | ES145510Y (en) |
-
1969
- 1969-02-11 ES ES1969145510U patent/ES145510Y/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
ES145510U (en) | 1969-05-16 |
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