CA74812A - Appareil pour enseigner l'arithmetique - Google Patents

Appareil pour enseigner l'arithmetique

Info

Publication number
CA74812A
CA74812A CA000074812A CA74812DA CA74812A CA 74812 A CA74812 A CA 74812A CA 000074812 A CA000074812 A CA 000074812A CA 74812D A CA74812D A CA 74812DA CA 74812 A CA74812 A CA 74812A
Authority
CA
Canada
Prior art keywords
primary arithmetic
teaching
teaching primary
arithmetic
primary
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
CA000074812A
Other languages
English (en)
Inventor
Asmus F. Lorenzen
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 CA74812A publication Critical patent/CA74812A/fr
Expired legal-status Critical Current

Links

CA000074812A 1901-04-18 1901-04-18 Appareil pour enseigner l'arithmetique Expired CA74812A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA74812T 1901-04-18

Publications (1)

Publication Number Publication Date
CA74812A true CA74812A (fr) 1902-02-18

Family

ID=45191348

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000074812A Expired CA74812A (fr) 1901-04-18 1901-04-18 Appareil pour enseigner l'arithmetique

Country Status (1)

Country Link
CA (1) CA74812A (fr)

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