NO885605L
(en )
1989-06-19
PROCEDURE FOR THE MANUFACTURE OF LUBRICANE OIL.
NO874442L
(en )
1988-04-28
PROCEDURE FOR THE REMOVAL OF MERCURY OIL FROM NATURAL GAS.
NO159386C
(en )
1988-12-21
ETERS AND ESTERS OF POLYGALACTTANNAN FROM CASSIA TORA, AND THE PROCEDURE FOR THEIR PREPARATION AND USE OF THE COMPOUNDS.
NO148384C
(en )
1983-10-05
PROCEDURE FOR OIL EXTRACTION FROM OIL FORMS
NO883729D0
(en )
1988-08-19
PROCEDURE FOR THE REMOVAL OF PARAFINE FROM PRODUCING OIL BROWNS.
NO882676D0
(en )
1988-06-16
PROCEDURE FOR EXPLOITING OIL OIL FROM AN UNDERGRADUATE RESERVE WITH THE USE OF TENSIDES.
NO883964D0
(en )
1988-09-06
PROCEDURE FOR THE PREPARATION OF AN ANTIOXY SIDE EXTRACT FROM SPICES.
NO900642D0
(en )
1990-02-09
PROCEDURE FOR STIMULATION OF OIL AND GAS SPECIES FOR THE EXTRACTION OF OIL AND GAS FROM UNDERGRADUATE FORMATION AND STIMULATION FOR THE PURPOSE.
NO854852L
(en )
1987-06-04
METHOD FOR INCREASING THE EXTRACTION RATE OF OIL FROM AN OIL FIELD.
NO822822L
(en )
1983-02-21
PROCEDURE FOR ENHANCED OIL EXTRACTION.
NO875134D0
(en )
1987-12-09
PROCEDURE FOR THE MANUFACTURE OF LUBRICANE OIL.
NO905051L
(en )
1991-05-22
PROCEDURE FOR THE REMOVAL OF TRIAL CYCLARINES FROM FLUIDS.
NO904760L
(en )
1991-05-03
REMOVAL OF TRIALKYLARSIN FROM FLUIDS.
NO811650L
(en )
1981-12-21
PROCEDURE FOR THE EXTRACTION OF RAW OIL FROM AN UNDERGRADUAL FORMATION.
NO164822C
(en )
1990-11-21
PROCEDURE FOR SEPARATING GAS FROM OIL.
NO163501C
(en )
1990-06-06
PROCEDURE FOR THE EXTRACTION OF OIL FROM AN UNDERGROUND PETROLEUM-CONDUCTIVE FORM.
NO162758C
(en )
1990-02-14
PROCEDURE FOR THE REMOVAL OF CADMIUM FROM RAAPHOSPHATE.
NO155494C
(en )
1987-04-08
PROCEDURE FOR THE EXTRACTION OF SOOT FROM Aqueous SUSPENSIONS THEREOF.
NO890910D0
(en )
1989-03-03
PROCEDURE FOR AA SIMPLE REMOVAL OF GRAVITION TYPE ELEMENTS FROM THE SEA BATH.
NO875283D0
(en )
1987-12-17
PROCEDURE FOR THE EXTRACTION OF OIL FROM UNDERGRADUATE OIL CONDITIONS.
NO870625L
(en )
1987-08-19
PREVENTION FOR EXTRACTION OF PETROLEUM FROM SUBSTANCES.
NO169190C
(en )
1992-05-20
PROCEDURE FOR OIL EXTRACTION
NO871607D0
(en )
1987-04-15
PROCEDURE FOR EXTRACTION OF SULFUR FROM MINERALS.
NO870264L
(en )
1988-07-22
PROCEDURE FOR OIL EXTRACTION.
NO904581L
(en )
1991-06-21
PROCEDURE FOR EXTRACING OIL FROM AN UNDERGRADUAL FORM.