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US2013160969A1
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Method and circuit arrangement for recovering heat from wastewaters
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Single-phase induction motor with stepped air gap
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Single-phase induction motor with steppes air gap
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Safety electric switch
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Inside brake mechanizm for low capacity asynchronous motor
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Snow bowler, mainly for the releasement of small surfaces and shaped bodies from snow
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Oil-flotating apparatus
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Apparatus for sensing or measuring the turn away in plain or space of two bodies with respect to each other
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