DK7894C
(en)
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Procedure for the manufacture of refractory products.
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DK7719C
(en)
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Procedure for the manufacture of refractory products of Krommalm.
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DK7637C
(en)
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Procedure for the manufacture of briquettes.
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DK7317C
(en)
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Procedure for the Preparation of Alizarin.
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DK7301C
(en)
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Procedure for the Production of Oxygen.
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DK8080C
(en)
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Apparatus for the production of Kraftgas.
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DK7661C
(en)
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Procedure for Manufacturing Hulsten.
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DK8014C
(en)
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Procedure for the manufacture of explosives.
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DK7686C
(en)
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Procedure for the production of so-called cold light.
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DK7540C
(en)
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Gas Production Procedure.
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ES36973A1
(en)
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A procedure for the manufacture of refractory bricks.
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DK7541C
(en)
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Procedure for the production of fired, refractory sandstones.
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DK7192C
(en)
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Blinkfyranordning til Fyrtaarne med Acetylendrift.
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DK9279C
(en)
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Procedure for the Production of Carbide.
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DK9741C
(en)
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Procedure for the Production of Carbide.
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CH34059A
(en)
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procedure
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AT25424B
(en)
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Temperature detector.
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FR356937A
(en)
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Safety referral
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ES34619A3
(en)
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The manufacture of buttons called indispensable.
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ES36200A1
(en)
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A procedure for the manufacture of bricks.
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CH34859A
(en)
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oven
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DK7692C
(en)
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Refractory Masonry.
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DK7590C
(en)
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Procedure for Refining Clays.
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DK7579C
(en)
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Device for the manufacture of sinks.
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ES36144A1
(en)
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A new procedure for the manufacture of artistic ceramics.
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