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DD292333A5
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Method for controlling the commissioning and signaling of the functionality of a traditional authorized electronic measurement and testing agent
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DD289131A5
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Method of measuring density changes of fluid fluids or gases in a piping system
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DD285027A5
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Method for removing a concrete coating from a steel tube
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DD284270A5
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Process for reducing internal corrosion in pipelines
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DD278428A1
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Circuit arrangement for setpoint adjustment for digital regulators
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DD274869A1
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Device for measuring the separation layer of fluids in tanks
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DD274490A1
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Testing device for testing the pressure tightness of pressure body insertion elements
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DD274154A3
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Test control for determining failure in connectors and connecting lines
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DD263573A1
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Molchweiche for pipes
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DD260997A1
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Device for determining the drive motion of bumped bodies
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DD262770A3
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Device and method for sealing and limiting damage to pipes
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DD301770A9
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Diagnostic tool for the detection of damage to pipeways according to the wireless flow procedure
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DD250747A1
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Device for sealing and charging separation in pipes
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DD249576A1
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Circuit arrangement for the load control of light machines in motor vehicles
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DD244800A1
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Method for determining the purity of pipe lines
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DD244799A1
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Separating device with a steel tractor
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DD240769A1
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Method for leak sealing on hollow bodies
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DD236787A1
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Device for supporting several fluids through a common piping
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DD234722A1
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Filling and level control device for batteries
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DD233627A1
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Device for temporary sealing of pipes
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