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US2486542A
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Simultaneous haloalkylation and reduction of organic compounds
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GB657925A
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Improvements in or relating to oil vapour pumps
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GB672919A
|
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High-vacuum unobstructed path fractionating distillation method and apparatus
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GB684757A
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Improvements in vitamin a derivatives and intermediates and methods of preparing same
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GB663791A
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Improvements in and relating to the synthesis of ª‡, ª‰-unsaturated aldehydes and amine derivatives thereof
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GB667069A
|
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An improved method for removing volatile matter from rolls of long lengths of unwoven sheet materials in preparation for coating under vacuum
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GB635436A
|
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Improvements in or relating to the heating of rotating workpieces by electromagnetic induction
|
|
GB636935A
|
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Improvements in or relating to the production of a vitamin a intermediate
|
|
US2471325A
|
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Vacuum dehydration
|
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GB634128A
|
|
Separation of delta-tocopherol from vegetable oils
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GB639011A
|
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Improvements in preparation of materials having vitamin e activity
|
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GB641655A
|
|
Improvements in the use of electric glow discharges for cleaning and degassing processes
|
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GB623336A
|
|
Improved method and apparatus for high vacuum coating
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GB635497A
|
|
An improved process for separating sterols from oil concentrates
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GB623337A
|
|
Improvements in rotary pumps for circulating liquid under vacuum
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GB632698A
|
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A method of treating tall oil in order to separate therefrom a fatty acid fraction as distillate
|
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GB635776A
|
|
Improvements in solenoid-operated valves
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GB650302A
|
|
Improvements in and relating to the production of straight chain conjugated polyene esters and acids
|
|
GB633749A
|
|
Improvements in or relating to the production of vitamin a and intermediates therefor
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GB633748A
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Improvements in or relating to the production of a vitamin a intermediate
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