CA290066A - Tableau noir - Google Patents

Tableau noir

Info

Publication number
CA290066A
CA290066A CA290066A CA290066DA CA290066A CA 290066 A CA290066 A CA 290066A CA 290066 A CA290066 A CA 290066A CA 290066D A CA290066D A CA 290066DA CA 290066 A CA290066 A CA 290066A
Authority
CA
Canada
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
CA290066A
Other languages
English (en)
Inventor
M. Tracu John
R. Scherer Francis
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 CA290066A publication Critical patent/CA290066A/fr
Expired legal-status Critical Current

Links

CA290066A Tableau noir Expired CA290066A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA290066T

Publications (1)

Publication Number Publication Date
CA290066A true CA290066A (fr) 1929-06-04

Family

ID=35226878

Family Applications (1)

Application Number Title Priority Date Filing Date
CA290066A Expired CA290066A (fr) Tableau noir

Country Status (1)

Country Link
CA (1) CA290066A (fr)

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