GB189505382A - Improvements in Blackboards. - Google Patents

Improvements in Blackboards.

Info

Publication number
GB189505382A
GB189505382A GB189505382DA GB189505382A GB 189505382 A GB189505382 A GB 189505382A GB 189505382D A GB189505382D A GB 189505382DA GB 189505382 A GB189505382 A GB 189505382A
Authority
GB
United Kingdom
Prior art keywords
blackboards
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
Inventor
James Wilding
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
Application granted granted Critical
Publication of GB189505382A publication Critical patent/GB189505382A/en
Expired legal-status Critical Current

Links

GB189505382D 1895-03-14 1895-03-14 Improvements in Blackboards. Expired GB189505382A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB189505382T 1895-03-14

Publications (1)

Publication Number Publication Date
GB189505382A true GB189505382A (en) 1896-01-25

Family

ID=32351404

Family Applications (1)

Application Number Title Priority Date Filing Date
GB189505382D Expired GB189505382A (en) 1895-03-14 1895-03-14 Improvements in Blackboards.

Country Status (1)

Country Link
GB (1) GB189505382A (en)

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