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US1228879A
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Manufacture of gas.
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US1181431A
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Manufacture of gas.
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US1032988A
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Process for obtaining cyanogen and its compounds.
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CA135530A
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Manufacture of ammonium carbonate
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US1004361A
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Method of making ammonium carbonate.
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US1018406A
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Manufacture of ammonium carbonate.
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US928494A
|
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Gas-furnace.
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GB190726590A
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Improvements in or relating to Gas Fired Furnaces.
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US822246A
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Gas-producing apparatus.
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GB190516579A
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Improvements in and connected with Vertical Retort Ovens.
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US904043A
|
|
Manufacture of gas.
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|
CA78963A
|
|
Gas retort
|
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US720780A
|
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Gas-retort.
|
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US720402A
|
|
Method of producing cyanogen compounds.
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GB189826259A
|
|
Improvements in and connected with the Separation, or Production, of Hydrocyanic Acid from Gases containing such Acid, or Cyanogen.
|
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GB189515456A
|
|
Method for Preventing Gas Conduits from being Stopped by Deposits Caused by Frost.
|
|
GB189409457A
|
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Improvements relating to the Drying of Lighting Gas, and to Apparatus therefor.
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