US2271587A
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Air register
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US2250079A
|
|
Multiple atomizing sprayer plate
|
US2177781A
|
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Liquid fuel burner
|
US2177780A
|
|
Wide range atomizer
|
US2177779A
|
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Shut-off valve for liquid fuel burners
|
GB477239A
|
|
Improvements in tubular heat exchange apparatus particularly applicable to fuel oil heaters
|
DE677848C
|
|
Heat exchanger with helical guide ribs
|
US2125022A
|
|
Air register
|
US2125021A
|
|
Combined lighting and observation port
|
US2081710A
|
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Telescopic shroud for use with oil burning equipment
|
US2105546A
|
|
Flame cone or diffuser
|
US2125020A
|
|
Oil burning equipment
|
US2125019A
|
|
Oil burning equipment
|
US2060936A
|
|
Heat exchange means
|
US2049509A
|
|
Liquid fuel burner
|
US2049508A
|
|
Liquid fuel burning equipment
|