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1999-02-16
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1993-09-29
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1992-02-28
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1989-01-26
Method of reinforcing ceramic
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1992-03-30
Ball-duct and method for producing the ball-deflecting structures of this ball-duct
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1992-06-26
Wall made of precast wall units
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1991-01-28
Method of reinforcing internal or external walls made of solid or hollow blocks
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1992-11-15
Method of making laser gyro resonator blocks
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1988-07-20
Units particularly formwork units adapted for example for construction of walls
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1990-06-27
Hollow brick
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1994-11-16
Method of making moulds
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1990-11-14
Method of manufacture
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1992-03-09
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1991-08-26
Method of erecting walls
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1993-06-02
Method of manufacture
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1991-01-31
Method of construction without cement
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1992-06-01
Method of making and/or machining concrete blocks
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1992-06-24
Method of building with bricks or blocks
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1993-11-29
Method of obtaining cellular concrete
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1993-05-26
Methods of building reinforcements into walls
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1993-06-16
Method of making concrete
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1992-08-24
Set of concrete hollow blocks
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1992-01-27
Method of obtaining refractory concrete
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1992-04-29
Manufacture of building blocks
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1990-06-20
Hollow block walls