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US1344458A
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Furnace
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US1242614A
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Checker-work for regenerative furnaces, hot-blast stoves, and the like.
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US1222690A
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Regenerative furnace.
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US1188502A
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Regenerative furnace.
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US1165725A
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Furnace.
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US1088799A
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Gas-producer.
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US1000629A
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Reversing-valve.
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US1042047A
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Metallurgical furnace.
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US1044093A
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Soaking-pit.
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US924009A
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Continuous-heating furnace.
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US930811A
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Seal for continuous heating-furnaces.
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US899572A
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Charger and stirrer for gas-producers.
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US887536A
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Poke-hole for gas-producers.
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US905474A
|
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Gas-producer.
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US887535A
|
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Furnace-feeding apparatus.
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