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US1700659A
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Measuring device
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GB283383A
|
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Improved methods and apparatus for refining oil
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GB288046A
|
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Liquid pump arrangement for vacuum condensing systems
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GB251928A
|
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Process of and apparatus for distilling lubricating oils from mineral oils
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US1647367A
|
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Method of and apparatus for lifting oils
|
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GB249801A
|
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Process of and apparatus for producing lubricating oils by distillation
|
|
US1756981A
|
|
Method of eliminating colloidal asphaltenes and carbenes from fuel oil
|
|
US1597821A
|
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Regulating apparatus for cracking stills
|
|
US1622737A
|
|
Process of separating hydrocarbon fractions
|
|
US1574935A
|
|
Pressure still for oil refining
|
|
US1583746A
|
|
Apparatus for refining oils
|
|
US1585922A
|
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Method of using concentrated decolorizing clays for refining lubricating oils
|
|
US1580956A
|
|
Process for dehydrating emulsions
|
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US1678823A
|
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Circulating dephlegmator
|
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US1562723A
|
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Process of distillation
|
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US1250050A
|
|
Pump.
|
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US1260598A
|
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Apparatus for treating petroleum.
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AU1745215B
|
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Process and apparatus for converting petroleum oils
|
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CA166686A
|
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Petroleum oil converting apparatus
|
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US1250052A
|
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Double evaporator and process of treating petroleum-oils.
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