CH1139A - Counting frame for children's schools to explain fractions - Google Patents

Counting frame for children's schools to explain fractions

Info

Publication number
CH1139A
CH1139A CH1139A CH1139DA CH1139A CH 1139 A CH1139 A CH 1139A CH 1139 A CH1139 A CH 1139A CH 1139D A CH1139D A CH 1139DA CH 1139 A CH1139 A CH 1139A
Authority
CH
Switzerland
Prior art keywords
schools
children
fractions
explain
counting frame
Prior art date
Application number
CH1139A
Other languages
German (de)
Inventor
Joh Hofstetter-Bader
Original Assignee
Hofstetter Bader Joh
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 Hofstetter Bader Joh filed Critical Hofstetter Bader Joh
Publication of CH1139A publication Critical patent/CH1139A/en

Links

CH1139A 1889-06-25 1889-06-25 Counting frame for children's schools to explain fractions CH1139A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1139T 1889-06-25

Publications (1)

Publication Number Publication Date
CH1139A true CH1139A (en) 1889-09-19

Family

ID=4179552

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1139A CH1139A (en) 1889-06-25 1889-06-25 Counting frame for children's schools to explain fractions

Country Status (1)

Country Link
CH (1) CH1139A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4337532A1 (en) * 1993-11-05 1995-05-11 Spectra Lehrmittel Verlag Gmbh Computing device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4337532A1 (en) * 1993-11-05 1995-05-11 Spectra Lehrmittel Verlag Gmbh Computing device

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