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GB841650A
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A vertical heater for heating oil and the like
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GB833087A
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A heavy fuel burner
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US2856903A
|
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Multi-coil vertical tube heater
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US2918117A
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Heavy fuel burner with combustion gas recirculating means
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US2791987A
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Multi-coil heat control furnace
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US2796052A
|
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Boiler construction
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US2796051A
|
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Boilers
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US2837065A
|
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Furnace construction
|
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US2856902A
|
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Tubular furnace
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US2703072A
|
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Indirect heater
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US2660996A
|
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Fluid heater
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US2640687A
|
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Flow arrangement for multipass heaters
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US2648599A
|
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Heat control in vertical furnace by flue gas recirculation
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US2655137A
|
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Upright boiler
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US2621636A
|
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Boiler superheater
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US2512396A
|
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Furnace cone of separable construction
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US2555552A
|
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Furnace header box
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US2562072A
|
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Segmental tube sheet
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US2575202A
|
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Prefabricated furnace
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US2507325A
|
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Bubble tower construction and method of fractionating vapors
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