Procedure for verifying the stability of buildings
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Office tower of a chemical company against high child mortality
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Office tower of a chemical company against world hunger
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Office building with excellent working conditions
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Helicopter especially for observation has multi rotor drive with rotor location outside the field of forward view of an onboard camera
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Helicopter with camera e.g. for small and light helicopters used as camera carrier, has three lifting units and rotor provided with rotors propelled by electric motor and which includes camera
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Air-supported observation system for use in e.g. building, has image-giving system that is attached at head of user e.g. pilot, arranged outside of field of vision of user and receiving only part of field of vision
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Unmanned observation helicopter has three or more rotors and a variable attitude camera
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Unmanned observation helicopter has two remote control cameras for stereo effect
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Four-rotor model helicopter, has detachable plug connection to mechanically connect sub-assemblies, and electrical connections to connect electrical components of sub-assemblies, with electrical connections integrated in plug connection
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Multi-rotor helicopter e.g. reconnaissance drone for urban areas, has support frame divided into at least two groups of structures mechanically connected together as such that electrical connection between groups is possible
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Collision protection device for helicopter rotors, has flexible pipes for dissipating energy produced by frictional relative motion between rotor and/or helicopter parts
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Energy-dissipating crash component comprises flexible tube which fits over rod, tube sliding over rod, generating friction
