CH37890A - School calculator - Google Patents

School calculator

Info

Publication number
CH37890A
CH37890A CH37890A CH37890DA CH37890A CH 37890 A CH37890 A CH 37890A CH 37890 A CH37890 A CH 37890A CH 37890D A CH37890D A CH 37890DA CH 37890 A CH37890 A CH 37890A
Authority
CH
Switzerland
Prior art keywords
calculator
school
school calculator
Prior art date
Application number
CH37890A
Other languages
German (de)
Inventor
Franz Rieck
Original Assignee
Franz Rieck
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 Franz Rieck filed Critical Franz Rieck
Publication of CH37890A publication Critical patent/CH37890A/en

Links

CH37890A 1906-10-30 1906-10-30 School calculator CH37890A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH37890T 1906-10-30

Publications (1)

Publication Number Publication Date
CH37890A true CH37890A (en) 1907-08-15

Family

ID=4263489

Family Applications (1)

Application Number Title Priority Date Filing Date
CH37890A CH37890A (en) 1906-10-30 1906-10-30 School calculator

Country Status (1)

Country Link
CH (1) CH37890A (en)

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