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ES15534A1 - Improvements introduced in the writing tablets, called blackboards. - Google Patents

Improvements introduced in the writing tablets, called blackboards.

Info

Publication number
ES15534A1
ES15534A1 ES15534A ES15534A ES15534A1 ES 15534 A1 ES15534 A1 ES 15534A1 ES 15534 A ES15534 A ES 15534A ES 15534 A ES15534 A ES 15534A ES 15534 A1 ES15534 A1 ES 15534A1
Authority
ES
Spain
Prior art keywords
blackboards
called
improvements introduced
writing tablets
tablets
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
ES15534A
Other languages
Spanish (es)
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.)
Klein Ignay
Original Assignee
Klein Ignay
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 Klein Ignay filed Critical Klein Ignay
Priority to ES15534A priority Critical patent/ES15534A1/en
Publication of ES15534A1 publication Critical patent/ES15534A1/en
Expired legal-status Critical Current

Links

ES15534A 1894-02-27 1894-02-27 Improvements introduced in the writing tablets, called blackboards. Expired ES15534A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES15534A ES15534A1 (en) 1894-02-27 1894-02-27 Improvements introduced in the writing tablets, called blackboards.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES15534A ES15534A1 (en) 1894-02-27 1894-02-27 Improvements introduced in the writing tablets, called blackboards.

Publications (1)

Publication Number Publication Date
ES15534A1 true ES15534A1 (en) 1894-04-16

Family

ID=64159761

Family Applications (1)

Application Number Title Priority Date Filing Date
ES15534A Expired ES15534A1 (en) 1894-02-27 1894-02-27 Improvements introduced in the writing tablets, called blackboards.

Country Status (1)

Country Link
ES (1) ES15534A1 (en)

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