The use of vertical-retort coal tar oil
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McIntyre, R.
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Article
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1941
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Wiley (John Wiley & Sons)
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For rcnsons of its own, tho gas industry tins replnced horizonto1 retorts by rcrticul retorts, and tho creosotc oil trndo bas gone through a period of depression rcsulting from tho production of oil which did not conform to tlic old spccificntions. This depression roached its iunsimuni about tho \*c