GB1028006A
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Improvements relating to goggle valves
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DE1198152B
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Rotary valve
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GB930483A
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An improved valve for use with blast and like furnaces
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DE1052196B
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Slider with movable housing seal seat
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DE1019518B
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Compensating bellows in pipelines
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DE1019522B
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Glasses slider
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US2843402A
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Gas seal for relatively rotating tubular parts of a blast furnace
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GB767267A
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An improved goggle valve
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GB767268A
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An improved expansible bellows for pipes
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GB728890A
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An improved goggle valve
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GB747911A
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An improved gas seal for relatively rotating tubular parts of a blast furnace top
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GB716885A
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Skips for handling material
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US2661770A
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Goggle valve
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US2661771A
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Goggle valve
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GB681844A
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An improved goggle valve
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GB681845A
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An improved goggle valve
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GB636863A
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Improvements in and relating to blast furnace charging mechanism
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GB647558A
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An improved coupling for use in blast furnace charging mechanism
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GB651429A
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An improved gas seal for relatively rotating tubular parts of a blast furnace top
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GB636976A
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Improvements in and relating to the manufacture of ferro-alloys
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