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FR465804A
(en)
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Concrete pile
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FI5008A
(en)
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Sätt framställa lättflytande concrete
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FR451532A
(en)
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Waterproof concrete
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CH59822A
(en)
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Iron-reinforced concrete slab
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CH59082A
(en)
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Ceiling construction
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CH61635A
(en)
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Reinforced concrete construction
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CH63287A
(en)
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Hollow cement stone
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CH61340A
(en)
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Reinforced concrete structure
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CH58584A
(en)
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Reinforced concrete ceiling
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CH59058A
(en)
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Reinforced concrete ceiling
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CH62083A
(en)
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Reinforced concrete sleeper
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CH61134A
(en)
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Reinforced concrete ceiling
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FR444800A
(en)
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Reinforced concrete floor
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FR455969A
(en)
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Reinforced concrete floor
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CH63289A
(en)
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brick
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CH62751A
(en)
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Reinforced concrete ceiling slab
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CH58591A
(en)
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Reinforced concrete railing
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FR441657A
(en)
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Improvements made to concrete buildings
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CH59091A
(en)
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Innovation for concrete formwork
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CH60048A
(en)
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PLASTER CEILING
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NL1606C
(en)
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Building material
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FR461674A
(en)
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Building foundations
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FR454375A
(en)
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Reinforced concrete slab
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CH63293A
(en)
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Scaffolding
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CH61595A
(en)
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Formwork scaffolding
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