SOURCE – FONTE https://www.google.com/patents/sitemap/en/Sitemap/A01/A01G/A01G_15_3.html Patents for A01G 15 – Devices or methods for influencing weather conditions (687) 03/2015 03/05/2015 WO2015028835A1 Unmanned mobile device and relative method for treating a snow covered … Leggi tutto PATENTS: DEVICES OR METHODS FOR INFLUENCING WEATHER CONDITIONS