Business patterns established with calculators such as design in one country, manufacture in another, distribution by third parties, rapid introduction of new models, and decreasing cost also would ...

A patent application was filed resulting in US patent 3,819,921, Miniature electronic calculator, which outlined the basic design for all the calculators to follow. This, idea borne of a ...

The Sinclair’s clean design still looks ... an insight into the calculator’s construction, and plenty of satisfying pictures for lovers of 1970s consumer electronics. The Sinclair is protected ...

This misleading design creates unnecessary waste through ... When shopping for calculators or other electronic devices, check product specifications and choose items from companies with proven ...