No. 99065248

Sold
Kontrolpribor - Calculator - 1967 - Circular logarithmic ruler KL-1 USSR
Final bid
€ 90
2 weeks ago

Kontrolpribor - Calculator - 1967 - Circular logarithmic ruler KL-1 USSR

Francisco Álvarez
Expert

Selected by Francisco Álvarez
Circular logarithmic ruler "KL - 1" is designed to perform mathematical operations of multiplication, division, squaring, obtaining the square root, finding the trigonometric functions of sine, cosine, tangent, as well as inverse trigonometric functions, finding the area of ​​a circle. Manufacturer: Moscow Scientific and Industrial Plant of Control Instruments "Kontrolpribor". The set includes a ruler, a box and instructions in Russian. There are small scratches on the ruler. The box is wrapped in film.

No. 99065248

Sold
Kontrolpribor - Calculator - 1967 - Circular logarithmic ruler KL-1 USSR

Kontrolpribor - Calculator - 1967 - Circular logarithmic ruler KL-1 USSR

Circular logarithmic ruler "KL - 1" is designed to perform mathematical operations of multiplication, division, squaring, obtaining the square root, finding the trigonometric functions of sine, cosine, tangent, as well as inverse trigonometric functions, finding the area of ​​a circle.

Manufacturer: Moscow Scientific and Industrial Plant of Control Instruments "Kontrolpribor".


The set includes a ruler, a box and instructions in Russian.

There are small scratches on the ruler.
The box is wrapped in film.

Final bid
€ 90
Francisco Álvarez
Expert
Selected by Francisco Álvarez
Estimate  € 90 - € 130

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