AT173876B - Arithmetic aid device - Google Patents

Arithmetic aid device

Info

Publication number
AT173876B
AT173876B AT173876DA AT173876B AT 173876 B AT173876 B AT 173876B AT 173876D A AT173876D A AT 173876DA AT 173876 B AT173876 B AT 173876B
Authority
AT
Austria
Prior art keywords
arithmetic
aid device
aid
arithmetic aid
Prior art date
Application number
Other languages
German (de)
Inventor
Johann Karl Deutsch
Original Assignee
Johann Karl Deutsch
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 Johann Karl Deutsch filed Critical Johann Karl Deutsch
Application granted granted Critical
Publication of AT173876B publication Critical patent/AT173876B/en

Links

AT173876D 1950-03-14 1950-03-14 Arithmetic aid device AT173876B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT173876T 1950-03-14

Publications (1)

Publication Number Publication Date
AT173876B true AT173876B (en) 1953-02-10

Family

ID=3657563

Family Applications (1)

Application Number Title Priority Date Filing Date
AT173876D AT173876B (en) 1950-03-14 1950-03-14 Arithmetic aid device

Country Status (1)

Country Link
AT (1) AT173876B (en)

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