1 79% - How can i activate international roaming on my prepaid airtel mobile in toronto? 2  44% - I am having airtel prepaid number in india. i am going to canada. 3  how shall i activate the international roaming and what is the tariff and procedure? 79% - How can i activate international roaming on my prepaid airtel mobile in toronto? 2  44% - I am having airtel prepaid number in india. i am going to canada. 3  how shall i activate the international roaming and what is the tariff and procedure?
Velcro was invented by George de Mestral a Swiss electrical engineer in 1941. This idea of inventing Velcro came to him when one day he returned after a walk from the hills and found cockleburs stuck to his clothes and his dogâs fur.George noticed its natural hook and loop quality and started making a fabric fastener on the same quality.his idea of inventing Velcro came to him when one day he returned after a walk from the hills and found cockleburs stuck to his clothes and his dogâs fur. George noticed its natural hook and loop quality and started making a fabric fastener on the same quality.
Johan Vaaler, a Norwegian inventor with a degree in electronics, science and mathematics, invented the paperclip in 1899. He received a patent for his design from Germany in 1899, since Norway had no patent laws at that time. Johan Vaaler was an employee at a local invention office when he invented the paperclip.