|
DE625667C
|
|
Electric resistance furnace with a fan wheel arranged on the furnace floor
|
|
GB416157A
|
|
Improvements in electric ovens and the like
|
|
GB401493A
|
|
Improvements in electric ovens
|
|
GB356298A
|
|
Improvements in electric furnaces
|
|
DE496336C
|
|
Switching arrangement to prevent dangerous contact with the fuse limiting the energy supply to the heating device in electric melting furnaces
|
|
GB334621A
|
|
Improvements in electric ovens
|
|
GB322975A
|
|
Improvements in electric furnaces
|
|
GB235993A
|
|
Improvements in or relating to electric mufflle furnaces
|
|
GB224272A
|
|
Improvements in electric furnaces or the like
|
|
GB210652A
|
|
Improvements in electric furnaces
|
|
GB198898A
|
|
Improvements in electric furnaces
|
|
GB194572A
|
|
Improvements in electric furnaces
|
|
GB198800A
|
|
Improvements in electric furnaces
|
|
GB173812A
|
|
Improvements in electric furnaces
|
|
GB151383A
|
|
An improved method of, and means for, testing the hardness of ferrous metals
|
|
GB150793A
|
|
Improvements in electrical furnaces
|
