|








|

|





















|
|
Image
|
Source
|
Observations
from the source
|
|

|
Gallenkamp (1970)
|
Box furnace
|
|

|
Gallenkamp (1971)
|
BOX FURNACE, Gallenkamp, automatic ON/OF
|
|

|
Gallenkamp (1971)
|
BOX FURNACE, Gallenkamp, automatic
ON/OFF
|
|

|
Gallenkamp (1971)
|
BOX FURNACE, Gallenkamp, manual control,
|
|

|
Gallenkamp (1971)
|
BOX FURNACES, Gallenkamp, automatic
ON/OFF
|
|

|
Gallenkamp (1970)
|
Muffle furnace
|
|

|
Gallenkamp (1970)
|
Muffle furnace
|
|

|
Gallenkamp (1970)
|
Muffle furnace
|
|

|
Gallenkamp (1970)
|
Muffle furnace
|
|

|
Gallenkamp (1970)
|
Muffle furnace
|
|

|
Gallenkamp (1970)
|
Muffle furnace
|
|

|
Gallenkamp (1971)
|
MUFFLE FURNACE, ‘HOTSPOT’, Gallenkamp,
|
|

|
Gallenkamp (1971)
|
MUFFLE FURNACE, ‘HOTSPOT’, Gallenkamp,
|
|

|
Gallenkamp (1971)
|
MUFFLE FURNACES, Gallenkamp, automatic
|
|

|
Gallenkamp (1971)
|
MUFFLE FURNACES, Gallenkamp, automatic
|
|

|
Gallenkamp (1971)
|
MUFFLE FURNACES, Gallenkamp, manual
control
|
|
|