FR584306A
(en)
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Continuous mechanical mixer
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FI10833A
(en)
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Procedure for making a porous building material
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FI11198A
(en)
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Procedure for making a porous building material
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FR587765A
(en)
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Hollow brick improvements
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FR607777A
(en)
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Perforated plaster tiles
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FR625521A
(en)
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Construction material lift
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FR593055A
(en)
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Brick making
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ES90707A1
(en)
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A procedure for making porous building materials.
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FR630840A
(en)
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Tile
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FR623331A
(en)
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Knocker
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FR638823A
(en)
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Roofing
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FR592876A
(en)
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Hollow brick
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FR597701A
(en)
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Concrete
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FI10646A
(en)
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Sätt att färga fibröst material
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FR607889A
(en)
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Concrete improvements
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FR605941A
(en)
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Hollow brick
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FR594813A
(en)
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Fiber cement
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FR607505A
(en)
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Building material
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FR606206A
(en)
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Building material
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FI10448A
(en)
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Sätt att behandla kolhaltiga material
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FR601238A
(en)
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Concrete construction
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FR592348A
(en)
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Hollow formwork brick
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ES95868A1
(en)
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Manufacturing procedure for new plasters.
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FR605945A
(en)
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Formwork hoop
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FI10106A
(en)
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Sätt att framställa cement
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