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GB446538A
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Improvements in devices for conveying objects being treated in continuously operating furnaces
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US2122200A
|
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Apparatus for conveying objects treated in continuously operating furnaces
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US2008696A
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Continuous furnace
|
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US1756457A
|
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Manufacture of objects consisting of refractory, insulating, abrasive, or like substances
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US1786202A
|
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Apparatus for high-temperature treatment of ores and other substances
|
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US1749700A
|
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Apparatus for the continuous treatment of metal bodies
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GB265548A
|
|
Improvements in the treatment of ores, wastes, oxides, metals and other substances
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|
GB262439A
|
|
Improvements in surface treatment for metal articles
|
|
GB263774A
|
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Improvements in and relating to the heat treatment of metallic pieces
|
|
US1726431A
|
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Process for the surface treatment of metals
|
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US1763229A
|
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Apparatus for the treatment of gases at high temperatures
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