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US1894149A
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Process for conserving granular materials
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US1869235A
|
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Process for the conservation of unstable, hygroscopic or volatile granular masses
|
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US1877489A
|
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Ammonia-soda process for the production of sodium hydroxide, naoh, with simultaneousproduction of ammonia
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GB309149A
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Improvements in and relating to the electrical purification of gases
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US1781659A
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Process for the thermal treatment of pulverulent material
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US1798649A
|
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Rotary furnace
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US1912247A
|
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Distillation of fine granular solid carbonizable material
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US1885673A
|
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Rotary annular sole oven
|
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US1798995A
|
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Apparatus for the distillation of suspended fuel particles
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GB282840A
|
|
Improvements in or relating to process and apparatus for separating constituents of loose mixtures particularly of liquids, vapours and gases
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US1865425A
|
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Apparatus for separating flowing mediums
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DE545366C
|
|
Procedure for washing out fine mist or fumes from gases
|
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US1765196A
|
|
Rotary hearth oven
|
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US1763453A
|
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Charging device for ovens of the rotary annular sole-plate type
|
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US1679018A
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Gas-tight seal for relatively-moving parts of ovens
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