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DD279044A1
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Device for cooling drive motors on fans
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DD281871A5
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Method of testing and securing welding equipment
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DD259437A1
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Seal for turning parts
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DD254631A1
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Shaft seal
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DD261265A3
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Protection device on sucking machines
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DD252663A1
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Device for venting a workplace
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DD251609A1
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Device for locking rotors of regenerative energy transmitters
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DD249069A1
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Device for regulating the supply current in radial fans
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DD248633A1
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Arrangement for dust replacement wear and troubleshooting of fan shovels
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DD246966A1
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Magazine for the flying of radial fans
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DD245458A1
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Arrangement of a cooling float in a radial fan
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DD245033A1
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Device for cleaning rotors of regenerative energy transmitters
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DD242463A1
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Method and electric actuator for butterfly valves
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DD242462A1
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Device for driving and controlling control devices
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DD241217A1
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Method and device for automatic arc flashing
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DD240686A1
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Device for monitoring the movement of waters
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DD240685A1
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Device for operating a welding head
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DD240682A1
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Device for collision protection to manipulators
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DD240056A1
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Device for tightening v-belts
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DD229463A1
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Hoover for vehicle loader
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