MX151742A
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1985-02-18
IMPROVEMENTS IN THE CONSTRUCTION OF BUILDINGS
BE889246A
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1981-12-16
PANEELCONSTRUCTIE IN DRAGERS DAARVOOR
MX154113A
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1987-05-18
IMPROVEMENTS IN THE JOINT OF PORTABROCA CORTADORA
ES530975A0
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1984-12-01
IMPROVEMENTS IN THE CONSTRUCTION OF COAGULOMETERS
MX159785A
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1988-02-22
IMPROVEMENTS IN WALKING MUNECA WITH CARRIOLA
BR8103645A
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1982-03-02
CONSTRUCTION STRUCTURE
MX152031A
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1985-05-24
IMPROVEMENTS IN THE CONSTRUCTION OF POOLS
ES495272A0
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1981-08-01
IMPROVEMENTS IN THE CONSTRUCTION OF MACHINE GUNS
ES495271A0
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1981-08-01
IMPROVEMENTS IN THE CONSTRUCTION OF MACHINE GUNS
AR219430A1
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1980-08-15
IMPROVEMENTS IN THE CONSTRUCTION OF NICHES
ES506420A0
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1982-09-01
IMPROVEMENTS IN THE CONSTRUCTION OF PHOTOGRAPHIC DENSITOMETERS
ES496587A0
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1981-12-16
IMPROVEMENTS IN THE CONSTRUCTION OF BUILDINGS
ES495131A0
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1981-06-16
IMPROVEMENTS IN THE CONSTRUCTION OF TRANSPORTABLE HABITACLES
ES493270A0
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1981-02-16
IMPROVEMENTS IN THE CONSTRUCTION OF MATTRESSES
ES492435A0
(en )
1981-02-16
IMPROVEMENTS INTRODUCED IN THE CONSTRUCTION OF OPEN FIRE CHIME-NEAS
ES250015Y
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1981-01-01
IMPROVEMENTS IN THE REVERSIVABILITY OF LOCKERS
ES493100A0
(en )
1981-06-16
IMPROVEMENTS IN THE CONSTRUCTION OF OVENS
ES253256Y
(en )
1981-06-01
IMPROVEMENTS IN THE CONSTRUCTION OF METAL FLOORS
ES495273A0
(en )
1981-08-01
IMPROVEMENTS IN THE CONSTRUCTION OF MACHINE GUNS
ES493938A0
(en )
1981-03-16
IMPROVEMENTS INTRODUCED IN THE CONSTRUCTION OF CONTAINERS
ES488602A0
(en )
1980-11-01
IMPROVEMENTS INTRODUCED IN THE CONSTRUCTION OF LIFTING DEVICES
ES504868A0
(en )
1983-04-01
IMPROVEMENTS IN THE CONSTRUCTION OF GIRATO-RIAS PLATFORMS
ES501308A0
(en )
1983-04-01
IMPROVEMENTS IN THE CONSTRUCTION OF VEHI-CULOS ELEVATORS
ES497746A0
(en )
1981-12-16
IMPROVEMENTS INTRODUCED IN THE CONSTRUCTION OF SPORTS INSTA-LATIONS
AR219233A1
(en )
1980-07-31
IMPROVEMENTS IN THE CONSTRUCTIVE ARRANGEMENT OF SELF-ELEVATORS