CA45261A - Appareil a effacer pour tableaux d'ecoles - Google Patents

Appareil a effacer pour tableaux d'ecoles

Info

Publication number
CA45261A
CA45261A CA000045261A CA45261DA CA45261A CA 45261 A CA45261 A CA 45261A CA 000045261 A CA000045261 A CA 000045261A CA 45261D A CA45261D A CA 45261DA CA 45261 A CA45261 A CA 45261A
Authority
CA
Canada
Prior art keywords
eraser
boards
black
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
CA000045261A
Other languages
English (en)
Inventor
John George Walters
Benjamin S. Hallman
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 CA45261A publication Critical patent/CA45261A/fr
Expired legal-status Critical Current

Links

CA000045261A Appareil a effacer pour tableaux d'ecoles Expired CA45261A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA45261T

Publications (1)

Publication Number Publication Date
CA45261A true CA45261A (fr) 1894-02-06

Family

ID=45161801

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000045261A Expired CA45261A (fr) Appareil a effacer pour tableaux d'ecoles

Country Status (1)

Country Link
CA (1) CA45261A (fr)

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