GB900225A
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Improvements relating to secondary surface heat exchangers of the fin and tube type
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GB889257A
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Improvements relating to heat exchangers
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GB860403A
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Improved heat exchanger tube
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GB820153A
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Improvements in the manufacture of heat exchangers
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DE1085485B
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Device for the independent production of rectangular tubes with a folded seam
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US2806445A
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Tinning apparatus for strip metal
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GB783117A
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An improved machine for producing lock-seamed tubing
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GB776793A
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Improvements relating to tinning apparatus
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GB775675A
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Improvements in finned tube core structures for heat exchangers
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US2967500A
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Tube drawing machine
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US2876723A
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Machine for producing fins for finned tube core structures
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CA576020A
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Punching machine for producing fins
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CA563615A
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Slotted shoe for guiding strip metal in tinning
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