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US2663590A
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Phosphorizing nozzle
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GB651557A
|
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Improvements in phosphorizing methods and apparatus
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US2634027A
|
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Phosphorizing apparatus
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GB335769A
|
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Fusing coatings to metal sheets
|
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US1876733A
|
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Sintering mechanism
|
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US1845322A
|
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Method of inductive heating
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US1859680A
|
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Induction electric furnace
|
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US1839927A
|
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Recuperator or regenerator use of gases from high frequency furnaces
|
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US1946873A
|
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Method for making stainless steel
|
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US1684504A
|
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Submerged-channel induction furnace
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US1550401A
|
|
Device for charging and discharging smelting furnaces
|
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US1677528A
|
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Rotary-field induction furnace
|
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US1688220A
|
|
Furnace lining and method of making same
|
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US1769223A
|
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Electric furnace process and apparatus
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US1432007A
|
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Tilting mechanism for furnaces and the like
|
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US1328336A
|
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Artificially-cooled high-frequency coil
|
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US1430714A
|
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Tilting mechanism for containers, such as furnaces
|
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GB119220A
|
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Improvements in and relating to Method and Apparatus for Electric Heating by High Frequency Currents.
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GB111844A
|
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Improvements in and relating to Method of and Apparatus for Heating by Electric Induction.
|
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US1286394A
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Method and apparatus for electric heating by high-frequency currents.
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