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CH222439A
(en)
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Kötzerspulmaschine.
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SU46577A1
(en)
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The method of mirror heating of the resin
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SU50661A1
(en)
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The method of obtaining artificial resin
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SU48906A1
(en)
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The method of manufacture of electric heaters
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SU46646A1
(en)
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The method of obtaining paint
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SU44615A1
(en)
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The method of producing diazo color
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SU48214A1
(en)
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The method of obtaining N-methyl-n-aminophenol
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SU45068A1
(en)
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The method of manufacturing plastic
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SU45601A1
(en)
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The method of obtaining terpindialov
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SU50568A1
(en)
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The method of transmitting vision through the film
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SU46011A1
(en)
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The method of producing glue
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SU44925A1
(en)
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The method of obtaining bromoform
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SU45914A1
(en)
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The method of obtaining cryolite
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SU46917A1
(en)
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The method of obtaining diphenyl ether
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SU46607A1
(en)
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The method of producing tetra-chlorophthalic acid
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CH189353A
(en)
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Liquid heater.
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CH189352A
(en)
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Liquid heater.
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DK51649C
(en)
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Snaplaas.
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ES4111Y
(en)
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Heater.
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DK55089C
(en)
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Central heating system.
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DK51937C
(en)
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Elements for Central Heaters.
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DK54960C
(en)
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Radiator.
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DK51405C
(en)
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Radiator.
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DK53599C
(en)
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Procedure for Making Multicolored Images.
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DK54120C
(en)
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Procedure for Making Multicolored Images.
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