Free illustration materials

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  Demultiplexer
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  Sprinkler (for watering)
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  Black cable
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  Amateur radio
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  Fire shutter
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  Electronic time card (disjoint)
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  Hand holding a microphone (interview)
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  Person who presses the time card
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  Storage battery
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  Small hydropower
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  Various patrol lamps (off)
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  X-ray crystal structure analyzer
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  Coin rice mill
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  Radar indicator
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  Digital key
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  Thermography examination (female)
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  Engine
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  Elekiter
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  Public telephone
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  Safe
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  Disc grinder
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  Vision of the baseball field
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  Various LED traffic lights
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  Automatic production line
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  Rice milling
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  Gear-Gear
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  Time bomb
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  Moving walkway
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  Radiological technologist
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  Hand holding a microphone

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  Various pedestrian crossings, traffic lights and pedestrians (girl)
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  Thermometer
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  A person who calls a nurse with a nurse call
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  A person who makes weapons with a 3D printer
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  Dome-shaped security camera
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  TV with color bars
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  Car battery
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  Factory tour
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  Spraying pesticides
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  Various LED traffic lights
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  Switch (Switch ON-Switch OFF)
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  Factory worker operating the machine