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DK3647C
(en)
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Electric Melting Furnace for Glassmaking.
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CH22244A
(en)
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Electric glass melting furnace
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CH22245A
(en)
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Electric glass melting furnace
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GB190122334A
(en)
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Improvements relating to Furnaces.
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CH22111A
(en)
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Electric melting furnace
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CH24126A
(en)
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Crucible furnace
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CA73930A
(en)
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Heating furnace
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CA72717A
(en)
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Heating furnace
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CA70341A
(en)
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Heating furnace
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CA70340A
(en)
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Heating furnace
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DK1984C
(en)
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Devices for electric furnaces.
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CH23246A
(en)
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Refractory brick
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FR342134A
(en)
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Electric furnace for fusion
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CH25241A
(en)
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Filling furnace
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CA72980A
(en)
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Furnace
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CA72824A
(en)
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Furnace
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CA74649A
(en)
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Furnace
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CA72251A
(en)
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Furnace
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CA92793A
(en)
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Furnace
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CA71119A
(en)
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Furnace
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CA71969A
(en)
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Furnace
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CA72306A
(en)
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Furnace
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CA72528A
(en)
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Furnace
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CA74446A
(en)
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Furnace
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CA73525A
(en)
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Calculing furnace
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