UAV (Unmanned aerial vehicle) provided with falling guard device and falling guard method thereof
UAV (Unmanned aerial vehicle) provided with falling guard device and falling guard method thereof
- CN 105,253,306 A
- Filed: 11/09/2015
- Published: 01/20/2016
- Est. Priority Date: 11/09/2015
- Status: Active Application
- EN CH
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- Pin
