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Air-cooled column head condenser for the condensation of the head product of rectification or distillation columns
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A mechanism for converting to-and-fro motion into rotary motion
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Heat exchangers for cooling liquids by means of gas coolants
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Air-cooled steam-condenser system
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Improved apparatus for the condensation of waste steam
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Method for the manufacture of battery electrodes
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Improvements in or relating to electrodes for primary and secondary batteries or accumulators and methods of producing the same
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Air-cooled condenser
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Air cooled heat exchangers for the cooling of liquids
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Steam surface condenser
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