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ES106941A1
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Improvements in the retorts and their analogues for the carbonization of the coal.
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CA194436A
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Destructive distillation
|
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GB120854A
|
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Improved Process of Fractional or Destructive Distillation.
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|
GB117645A
|
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Improvements in Processes of Destructive Distillation.
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|
US1104456A
|
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Process for extracting oils from solids.
|
|
US985862A
|
|
Method of extracting oils from solid.
|
|
US985863A
|
|
Oil-extracting apparatus.
|
|
CA90644A
|
|
Powder holder and delivering device
|
|
GB190422468A
|
|
Improvements in Powder Holding and Delivering Devices.
|
|
US772443A
|
|
Powder holding and delivering device.
|
|
US708845A
|
|
Rendering apparatus.
|
|
CA8270A
|
|
Improvements on stay strip gauges
|
|
CA275847A
|
|
Pressure apparatus
|
|
CA301836A
|
|
Carbonizing retort
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