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GB908090A
|
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Improvements in metallurgical heat treatment furnaces
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GB881061A
|
|
Improvements in quench furnaces
|
|
GB890125A
|
|
Improvements in metallurgical heat-treatment furnaces
|
|
DE1095903B
|
|
Electrical conductor
|
|
GB854581A
|
|
Electron beam welding furnace
|
|
GB895698A
|
|
Improvements in metallurgical heat treatment furnaces
|
|
US2969411A
|
|
Induction heated furnaces
|
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GB909031A
|
|
Improvements in electric heating elements for furnaces
|
|
GB893862A
|
|
Induction heated furnaces
|
|
GB821469A
|
|
Improvements in metallurgical heat treatment furnaces
|
|
DE1076841B
|
|
Low-frequency induction heating device designed as a heating tube for cylinders, for example extrusion cylinders of plastic molding machines
|
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US2868938A
|
|
Inductors for heating tubes or cylinders
|
|
GB858855A
|
|
Induction heated rotary rollers
|
|
GB804864A
|
|
Improvements in the production of atmospheres for the gaseous cementation of ferrousalloys
|
|
GB793828A
|
|
Improvements in apparatus for feeding liquids at slow rate
|
|
GB794598A
|
|
Inductors for heating cylinders
|
|
GB748320A
|
|
Improvements in the production of atmospheres for the gaseous cementation of ferrous alloys
|
|
GB744143A
|
|
Thermoelectric temperature indicators for use in heat-treatment apparatus
|
|
GB730104A
|
|
Inductors for induction heating
|
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DE867266C
|
|
Electrically heated furnace with a plurality of silicon carbide heating elements
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