This patent drawing poster illustrates the intricate design of a historical calculating device. The... Read More
This patent drawing poster illustrates the intricate design of a historical calculating device. The detailed blueprint showcases various components, including the keypad and internal mechanisms. The poster contains all prominent text such as 'PATENTED JUN 25 1974' and '3.819.921'. Available in various colours. Product contains a single poster only.
Printed on uncoated 230g paper.
Does not include frame or hanger.
Colours may differ slightly from those shown on photo due to differences in monitor settings.
