CH46993A - Metrischer Zählrahmen für den Rechenunterricht - Google Patents

Metrischer Zählrahmen für den Rechenunterricht

Info

Publication number: CH46993A
Authority: CH; Switzerland
Prior art keywords: lessons; arithmetic; counting frame; metric counting; metric
Prior art date: 1909-11-23

Application number

CH46993A

Other languages

English (en)

Inventor

Theodor Schneller

Original Assignee

Theodor Schneller

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.)

1909-11-23

Filing date

1909-11-23

Publication date

1910-05-02

1909-11-23 Application filed by Theodor Schneller filed Critical Theodor Schneller

1910-05-02 Publication of CH46993A publication Critical patent/CH46993A/de

Links

CH46993A 1909-11-23 1909-11-23 Metrischer Zählrahmen für den Rechenunterricht CH46993A (de)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CH46993T		1909-11-23

Publications (1)

Publication Number	Publication Date
CH46993A true CH46993A (de)	1910-05-02

Family

ID=4280957

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CH46993A CH46993A (de)	1909-11-23	1909-11-23	Metrischer Zählrahmen für den Rechenunterricht

Country Status (1)

Country	Link
CH (1)	CH46993A (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3633287A (en) *	1970-05-06	1972-01-11	Fitz A Squires	Numerical base systems teaching device

1909
- 1909-11-23 CH CH46993A patent/CH46993A/de unknown

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3633287A (en) *	1970-05-06	1972-01-11	Fitz A Squires	Numerical base systems teaching device

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