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1986-07-03
IMPROVED STRUCTURE FOR PREFABRICATED BUILDINGS
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1982-09-21
IMPROVEMENTS TO A METHOD FOR THE CONSTRUCTION OF CEILING STRUCTURES
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1982-04-01
INSTALLATION FOR THE MANUFACTURE OF A CONSTRUCTION MATERIAL
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1981-10-20
ELEMENT FOR STAIR CONSTRUCTION
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1982-07-30
PROCEDURE FOR THE CONSTRUCTION OF A CONCRETE COATING
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1980-07-15
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1982-11-30
GUARNICATION FOR REMOVABLE CONNECTION OF CONSTRUCTION ELEMENTS
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1982-02-16
SKELETON FOR CONSTRUCTIONS
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1980-12-01
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1982-08-31
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1980-03-25
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1980-12-02
PREFABRICATED CONSTRUCTION ELEMENT
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1981-08-01
A METHOD FOR THE PREPARATION OF NEW PIRIMIDINOLES
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1980-12-16
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1979-07-31
SET OF PREFABRICATED ELEMENTS FOR CONSTRUCTION
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1984-09-28
A SET OF PREFABRICATED ELEMENTS FOR CONSTRUCTION
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1981-06-01
PREFABRICATED BEAM ELEMENT
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1977-06-30
A SET OF ELEMENTS FOR THE CONSTRUCTION OF PARTITIONS
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1982-07-30
METHOD FOR THE PREPARATION OF A COMPOUND OF 2-BENZOILIMINO-5-NITRO-4-TIAZOLIN-3-ACETAMIDA
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1981-05-29
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1983-07-16
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1982-09-30
MODULAR ELEMENT FOR CONSTRUCTION OF PREFABRICATED BUILDINGS
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1983-06-02
IMPROVED FRAME STRUCTURE FOR A PREFABRICATED BUILDING
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1987-03-05
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1982-06-16
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