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US1795959A
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Slag pocket
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Sectional buckstay
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Water-cooled collapsible port
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Method of supporting, constructing, and repairing furnace roofs
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Method and apparatus for coating surfaces
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Water-cooled collapsible port
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CA311596A
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Damper
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Method of repairing furnace roofs
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CA299440A
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Sectional buckstay
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CA285984A
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Collapsible port for furnaces
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CA318526A
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Apparatus for coating surfaces
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CA299441A
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Slag pocket
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CA286176A
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Method of supporting, constructing and repairing furnace roofs
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