Technology Push: Sony Walkman, Apple ipad, Motor Car, Early Telephone, Gramaphone, Early Cameras, Flat Screen TVs, Market Pull: Digital Camera, Electric Car, Smartphone, Low energy Lightbulbs, Reusable Carrier Bag, Bic biro, US Spacecraft, Motorbike,

Technology Push & Market Pull

લીડરબોર્ડ

દૃશ્યમાન શૈલી

વિકલ્પો

ટેમ્પલેટ બદલો

આપોઆપ સંગ્રહ થયેલ છે: ?