FR358933A
(en)
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Drains
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DK7904C
(en)
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Procedure for the manufacture of roofing felt.
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DK10127C
(en)
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Procedure for the manufacture of hard-to-combustible roofing felt.
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AT26343B
(en)
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Interlocking roof tiles.
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FR358937A
(en)
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Wick drain
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DK7637C
(en)
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Procedure for the manufacture of briquettes.
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DK10936C
(en)
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Procedure for Increasing the Durability of Roofing felt.
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DK7661C
(en)
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Procedure for Manufacturing Hulsten.
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DK7199C
(en)
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Procedure for Manufacturing Lime Sandstone.
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FR364709A
(en)
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Snowshoeing
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DK7941C
(en)
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Procedure for the manufacture of a finishing agent.
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DK7540C
(en)
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Gas Production Procedure.
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DK7301C
(en)
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Procedure for the Production of Oxygen.
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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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AT26077B
(en)
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Roof tiles.
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DK7250C
(en)
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Procedure for Manufacturing Partitions.
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DK8014C
(en)
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Procedure for the manufacture of explosives.
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DK7602C
(en)
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Procedure for the Synthetic Production of Cyan Hydrogen.
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CH35288A
(en)
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Novel roofing felt
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CH32177A
(en)
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Snowshoeing
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CH35452A
(en)
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Humidifier
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DK8113C
(en)
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Procedure for Utilization of Water Gas Tar.
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DK7192C
(en)
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Blinkfyranordning til Fyrtaarne med Acetylendrift.
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DK11286C
(en)
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Procedure for the Manufacture of Carbide Nitrogen Compounds.
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