CA27818A - Tableau noir - Google Patents

Tableau noir

Info

Publication number
CA27818A
CA27818A CA000027818A CA27818DA CA27818A CA 27818 A CA27818 A CA 27818A CA 000027818 A CA000027818 A CA 000027818A CA 27818D A CA27818D A CA 27818DA CA 27818 A CA27818 A CA 27818A
Authority
CA
Canada
Prior art keywords
black board
black
board
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
CA000027818A
Other languages
English (en)
Inventor
Stephen C. Sassions
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
Publication date
Application granted granted Critical
Publication of CA27818A publication Critical patent/CA27818A/fr
Expired legal-status Critical Current

Links

CA000027818A Tableau noir Expired CA27818A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA27818T

Publications (1)

Publication Number Publication Date
CA27818A true CA27818A (fr) 1887-10-14

Family

ID=45144359

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000027818A Expired CA27818A (fr) Tableau noir

Country Status (1)

Country Link
CA (1) CA27818A (fr)

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