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GB536091A
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Improvements in mercury switches of temperature control devices for furnaces and the like
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GB468707A
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Improvements in or relating to the extraction of volatile hydrocarbons from solid or high boiling point liquid hydrocarbons
|
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GB429092A
|
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Improvements in or relating to radio frequency variable inductances
|
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GB408342A
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Improvements in the extraction of liquid hydrocarbons from coal, shale and other solid hydrocarbonaceous material
|
|
GB291475A
|
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An improved method of and means for treating oil bearing shales and kindred oil bearing minerals
|
|
GB284008A
|
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Improvements in or relating to temperature controlling devices for furnace chambers and other apparatus
|
|
GB282864A
|
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Improvements in or relating to temperature controlling devices for furnace chambers and other apparatus
|
|
GB248014A
|
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An improved method of and means for treating oil bearing shales
|
|
GB193979A
|
|
Improvements in or relating to desulphurising oil
|
|
GB175024A
|
|
Improvements in or relating to temperature controlling devices for furnace chambers and other apparatus
|
|
GB164098A
|
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Improvements in or relating to distilling apparatus
|
|
GB142945A
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Improvements in or relating to the gasifying of solid and liquid fuels
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