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Gray et al.
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A short history of gunpowder and the role of charcoal in its manufacture |
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SE70943C1
(OSRAM)
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US1350624A
(en)
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stein |
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GB260390A
(en)
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Improvements in metal moulds or dies for use in casting metal
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GB395983A
(en)
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Improvements in tunnel kilns
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GB368482A
(en)
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Improvements in gas or oil fired air heaters
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DE478714C
(de)
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Verfahren zur Herstellung von keramischen Erzeugnissen, insbesondere von Ziegelsteinen mit feuchter Kuehlluft
|
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US1555228A
(en)
|
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Muffle furnace
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GB566761A
(en)
|
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Improvements in apparatus for cooling materials discharged from kilns
|
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DE450206C
(de)
|
|
Gasradiatorofen mit Kaminanschluss
|
|
GB310385A
(en)
|
|
Improvements in and relating to the drying of materials
|
|
GB300322A
(en)
|
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Improvements in furnaces for malt or other drying kilns or for open firegrates or basket fires
|
|
GB488262A
(en)
|
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Improved tunnel kiln for firing ceramic ware
|
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GB350294A
(en)
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Improvements in and relating to air heaters
|
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GB366846A
(en)
|
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Improvements in or relating to steam-generating installations and certain applications thereof
|
|
GB419535A
(en)
|
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Improvements in tunnel kilns and the like
|
|
GB448675A
(en)
|
|
Improvements in processes and plants for the artificial drying of ceramic products, and in particular of tiles and bricks
|
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GB177710A
(en)
|
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Heating and drying apparatus
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SE99905C1
(OSRAM)
|
|
|
|
GB331635A
(en)
|
|
Improvements in gas fired furnaces
|
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GB119817A
(en)
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Improvements in Gas Fired Furnaces for Heating Tools and other Articles.
|
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GB283009A
(en)
|
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Improvements in continuous kilns for burning and like purposes
|
|
SE70997C1
(OSRAM)
|
|
|
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GB275022A
(en)
|
|
Improvements connected with smoke burning arrangements for the fire-bridges of steam generator and like furnaces
|
|
GB601197A
(en)
|
|
Improvements in kilns for revivifying bone charcoal and substitute or similar material
|