ES85663Y - Blackboard - Google Patents

Blackboard

Info

Publication number
ES85663Y
ES85663Y ES85663U ES85663U ES85663Y ES 85663 Y ES85663 Y ES 85663Y ES 85663 U ES85663 U ES 85663U ES 85663 U ES85663 U ES 85663U ES 85663 Y ES85663 Y ES 85663Y
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
Application number
ES85663U
Other languages
Spanish (es)
Other versions
ES85663U (en
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 ES85663U priority Critical patent/ES85663Y/en
Publication of ES85663U publication Critical patent/ES85663U/en
Application granted granted Critical
Publication of ES85663Y publication Critical patent/ES85663Y/en
Expired legal-status Critical Current

Links

ES85663U 1961-02-09 1961-02-09 Blackboard Expired ES85663Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES85663U ES85663Y (en) 1961-02-09 1961-02-09 Blackboard

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES85663U ES85663Y (en) 1961-02-09 1961-02-09 Blackboard

Publications (2)

Publication Number Publication Date
ES85663U ES85663U (en) 1961-03-01
ES85663Y true ES85663Y (en) 1962-02-16

Family

ID=52709810

Family Applications (1)

Application Number Title Priority Date Filing Date
ES85663U Expired ES85663Y (en) 1961-02-09 1961-02-09 Blackboard

Country Status (1)

Country Link
ES (1) ES85663Y (en)

Also Published As

Publication number Publication date
ES85663U (en) 1961-03-01

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