|
GB1002602A
|
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Improvements in or relating to shielded arc welding method and apparatus
|
|
GB989006A
|
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Improvements in or relating to protective flux for arc welding
|
|
DE1440413A1
|
|
Circuit arrangement for setting the deposition rate during automatic arc welding
|
|
FR1280096A
|
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Humus box for mushroom house
|
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GB272181A
|
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Improvements in apparatus for heating by means of powdered coal
|
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GB265168A
|
|
Improvements in powdered fuel burners
|
|
US1747522A
|
|
Heating apparatus employing powdered fuel
|
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DE488578C
|
|
Burner for heating a furnace or a chamber with dusted coal by means of a nozzle
|
|
DE495082C
|
|
burner
|
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CA739048A
|
|
Shielded arc welding method and apparatus
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