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GB329674A
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Process of and apparatus for treating solid hydrocarboncontaining material
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GB317066A
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An improved kiln or retort for continuous working
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GB331224A
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Improvement in kilns
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GB331225A
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Improvement in kilns
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GB328265A
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Improvements in or relating to tunnel kilns
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GB311316A
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Improvement in kilns
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GB332619A
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Improvements in or relating to continuous kilns
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GB327486A
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Improvements in or relating to heat treating furnaces
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GB306813A
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Improvements in kilns
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GB305025A
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Improvement in kilns
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GB328264A
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A new or improved truck, holder or conveying device for use in kilns particularly kilns of the continuous type
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GB324627A
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Improvements in or relating to annealing
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