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AU569938A - Improvements in blackboards andthe like - Google Patents

Improvements in blackboards andthe like

Info

Publication number
AU569938A
AU569938A AU5699/38A AU569938A AU569938A AU 569938 A AU569938 A AU 569938A AU 5699/38 A AU5699/38 A AU 5699/38A AU 569938 A AU569938 A AU 569938A AU 569938 A AU569938 A AU 569938A
Authority
AU
Australia
Prior art keywords
blackboards
andthe
blackboards andthe
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
AU5699/38A
Other versions
AU108359B2 (en
Inventor
Bbowxie Gabdex William
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
Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of AU569938A publication Critical patent/AU569938A/en
Publication of AU108359B2 publication Critical patent/AU108359B2/en
Expired legal-status Critical Current

Links

AU5699/38A 1938-12-29 Improvements in blackboards andthe like Expired AU108359B2 (en)

Publications (2)

Publication Number Publication Date
AU569938A true AU569938A (en) 1939-09-07
AU108359B2 AU108359B2 (en) 1939-09-07

Family

ID=

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