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US1840453A
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Gas burner nozzle
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US1753220A
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Track for use in furnaces
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US1762067A
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Conveyer system for heat-treating furnaces
|
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US1750616A
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Burner for natural gas
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US1753613A
|
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Gas burner
|
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US1752432A
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Conveyer for use with furnaces
|
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US1754294A
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Spiral feed conveyer for heat-treating furnaces
|
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US1752783A
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Means for transferring objects to hook-type conveyers
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US1742647A
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Conveyer for use with furnaces
|
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US1769821A
|
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Burner
|
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US1721484A
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Gas burner
|
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US1716956A
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Annealing furnace
|
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US1762133A
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Regulating apparatus for gas-burning equipment
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US1730150A
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Relay control valve
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US1749415A
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Dumping conveyer mechanism for furnaces
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US1711274A
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Soaking-pit furnace
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US1704875A
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Method of burning gaseous mixtures
|
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US1763047A
|
|
Method of burning explosive gaseous mixtures
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US1714473A
|
|
Tunnel-type gas burner
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US1723109A
|
|
Normalizing furnace
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