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WI EN - 製錶師工具 Vintage - 手錶消磁器
編號 84419387
編號 84419387
The round logarithmic ruler "KL - 1" is designed to perform mathematical operations of multiplication, division, squaring, taking square roots, finding trigonometric functions of sine, cosine, tangent, as well as inverse trigonometric functions, finding the area of a circle. The set includes a passport with instructions and a box.
Manufacturer: Moscow pilot plant of control devices “Kontrolpribor”.
The ruler is in the original box.
There are instructions in Russian.
Secure shipping with tracking.