|
DK7486C
(en)
|
|
Welding and annealing furnace.
|
|
AT23707B
(en)
|
|
Muffle furnace.
|
|
ES36997A1
(en)
|
|
Improvements in blast furnaces.
|
|
CH33560A
(en)
|
|
Furnace grate
|
|
CH41530A
(en)
|
|
Muffle furnace
|
|
DK7568C
(en)
|
|
Gas burner.
|
|
AT27544B
(en)
|
|
Double gas burner.
|
|
CA92649A
(en)
|
|
Annealing furnace
|
|
CH42008A
(en)
|
|
Furnace
|
|
FR353391A
(en)
|
|
Electro-metallurgical furnace
|
|
FR394292A
(en)
|
|
Metallurgical furnace
|
|
DK7887C
(en)
|
|
Double oven.
|
|
ES41433A2
(en)
|
|
Improvements in gas regenerative furnaces.
|
|
FR375841A
(en)
|
|
Submerged furnace
|
|
FR363967A
(en)
|
|
Smoke-eating hearth
|
|
FR350526A
(en)
|
|
Smoke-eating hearth
|
|
FR367609A
(en)
|
|
Torches
|
|
ES36629A1
(en)
|
|
A crucible furnace.
|
|
DK7189C
(en)
|
|
Procedure and Burner for Gasilt Lighting.
|
|
FR354531A
(en)
|
|
Metal clutch
|
|
CH35337A
(en)
|
|
Burner
|
|
AT25792B
(en)
|
|
Spirit incandescent burner.
|
|
DK7582C
(en)
|
|
Device for gas annealing bodies.
|
|
DK9459C
(en)
|
|
Electric Melting Furnace.
|
|
DK7937C
(en)
|
|
Pliers.
|