ES36842Y - Blackboard - Google Patents
BlackboardInfo
- Publication number
- ES36842Y ES36842Y ES0036842U ES36842U ES36842Y ES 36842 Y ES36842 Y ES 36842Y ES 0036842 U ES0036842 U ES 0036842U ES 36842 U ES36842 U ES 36842U ES 36842 Y ES36842 Y ES 36842Y
- Authority
- ES
- Spain
- Prior art keywords
- blackboard
- 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 |
---|---|---|---|
ES0036842U ES36842Y (en) | 1953-06-23 | 1953-06-23 | Blackboard |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES0036842U ES36842Y (en) | 1953-06-23 | 1953-06-23 | Blackboard |
Publications (2)
Publication Number | Publication Date |
---|---|
ES36842U ES36842U (en) | 1953-08-01 |
ES36842Y true ES36842Y (en) | 1953-12-01 |
Family
ID=51100273
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES0036842U Expired ES36842Y (en) | 1953-06-23 | 1953-06-23 | Blackboard |
Country Status (1)
Country | Link |
---|---|
ES (1) | ES36842Y (en) |
-
1953
- 1953-06-23 ES ES0036842U patent/ES36842Y/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
ES36842U (en) | 1953-08-01 |
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