|
DE664347C
|
|
Process of combined gas fusion and electric arc welding
|
|
GB305172A
|
|
Heat-exchange apparatus
|
|
GB292484A
|
|
Improved manufacture of plates or walls of vessels to be heated or cooled by passage of fluid through tubes
|
|
GB276013A
|
|
Improved manufacture of plates or walls of vessels to be heated or cooled by passageof fluid through tubes
|
|
GB273306A
|
|
Improved manufacture of plates or walls of vessels to be heated or cooled by passageof fluid through tubes
|
|
GB191424646A
|
|
Method of Autogenous Welding or Fusing of Nickel and Alloys Containing a High Percentage of Nickel.
|
