AR222971A1
(en )
1981-07-15
DEEMULSIFIER TO SEPARATE RAW OIL EMULSIONS
BR7905065A
(en )
1980-05-13
COMPOUNDS; COMBUSTIBLE COMPOSITION; LUBRICATING AND CONCENTRATED OIL COMPOSITION
AR219723A1
(en )
1980-09-15
LUBRICATING OIL COMPOSITION
BR7706169A
(en )
1978-07-04
EXPLOSIVE COMPOSITION IN THE FORM OF WATER EMULSION IN OIL
ES500369A0
(en )
1982-09-01
IMPROVEMENTS IN THE DEVICES TO CONTROL THE MOVEMENT OF VEHICLES
MX4210E
(en )
1982-01-28
IMPROVEMENTS IN CONTROL UNIT FOR PUMPING OF OIL WELLS
BR7600648A
(en )
1976-09-14
LUBRICATING OIL OR PETROLEUM OIL COMPOSITION
ES488806A0
(en )
1980-12-01
DEVICE FOR UNDERWATER OPERATION OF FLUIDS
SE7706560L
(en )
1977-12-08
LUBRICANT OIL COMPOSITION
MX5570E
(en )
1983-10-18
IMPROVED LUBRICATING COMPOSITION FOR DRILLING FLUIDS
DK150277C
(en )
1987-10-05
OIL TANK
MX144616A
(en )
1981-10-30
COMPOSITE RING FOR REGULATING OIL
BR7705116A
(en )
1978-05-02
INSTALLATION FOR THE EXPLORATION OF MARITIME PETROLIFERAS
BE870490A
(en )
1979-03-15
PETROLEUM OIL COMPOSITION WITH IMPROVED FLUID PROPERTIES
ES500324A0
(en )
1982-09-01
HYDRAULIC OIL TANK FOR THE SUPPLY OF HYDRAULIC DISPOSITIONS
MX151962A
(en )
1985-05-22
IMPROVED METHOD FOR DIACRITIC CRACHING OF HEAVY OIL
AR223485A1
(en )
1981-08-31
A PROCEDURE TO REDUCE THE SULFUR CONTENT OF OIL WASTE
MX4251E
(en )
1982-03-03
IMPROVED LONG-RACE PUMPING APPARATUS FOR OIL WELLS
MX147187A
(en )
1982-10-20
HYDRAULICALLY GOVERNED SAFETY VALVE ESPECIALLY FOR UNDERWATER OIL DRILLS
BE881032A
(en )
1980-07-08
LUBRICATION OIL COMPOSITION
MX151228A
(en )
1984-10-16
DEVICE TO CONTROL THE SPILLAGE OF MARITIME OIL WELLS
MX144098A
(en )
1981-08-26
IMPROVED PLATFORM STRUCTURE TO BE INSTALLED AT SEA
NO774260L
(en )
1978-12-11
DEVICE FOR OIL DRILLING ON THE SEA
IT1076269B
(en )
1985-04-27
DEVICE FOR THE COLLECTION OF OIL OR SIMILAR ON WATER
AR216817A1
(en )
1980-01-31
DEVICE FOR THE SKINING OF FISH FILLETS