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DK3647C
(da)
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Elektrisk Smelteovn til Glasfremstilling.
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CH22244A
(de)
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Elektrischer Glasschmelzofen
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CH22245A
(de)
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Elektrischer Glasschmelzofen
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GB190122334A
(en)
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Improvements relating to Furnaces.
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CH22111A
(de)
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Elektrischer Schmelzofen
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CH24126A
(de)
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Tiegelofen
|
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CA73930A
(en)
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|
Heating furnace
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CA72717A
(en)
|
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Heating furnace
|
|
CA70341A
(en)
|
|
Heating furnace
|
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CA70340A
(en)
|
|
Heating furnace
|
|
DK1984C
(da)
|
|
Anordninger ved elektriske Smelteovne.
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CH23246A
(fr)
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Brique réfractaire
|
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FR342134A
(fr)
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Four électrique pour fusion
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|
CH25241A
(de)
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|
Füllofen
|
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CA72980A
(en)
|
|
Furnace
|
|
CA72824A
(en)
|
|
Furnace
|
|
CA92793A
(en)
|
|
Furnace
|
|
CA73525A
(en)
|
|
Calculing furnace
|
|
CA71119A
(en)
|
|
Furnace
|
|
CA71969A
(en)
|
|
Furnace
|
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CA72251A
(en)
|
|
Furnace
|
|
CA72306A
(en)
|
|
Furnace
|
|
CA72528A
(en)
|
|
Furnace
|
|
CA74649A
(en)
|
|
Furnace
|
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CA74446A
(en)
|
|
Furnace
|