GR28B
(en )
1921-03-03
PERFECTION OF THE METHOD FOR THE USE OF COAL AND MINERAL OIL IN THE OVENS OF BOILERS.
GR27B
(en )
1921-03-03
PERFECTION OF HEAT CONSUMER FLUID FUEL OR FUEL MIXTURE IN MINERAL CONDITION AND MINERAL OIL.
GR919B
(en )
1925-05-23
METHOD AND APPLIANCE FOR THE PRODUCTION OF RELATED FUEL ANALOGUE TO OIL.
GR305B
(en )
1922-07-31
METHOD AND PROVISION TO PREVENT THE FORMATION OF SEAFLOWER PADS INSIDE THE BOILERS.
GR1309B
(en )
1926-10-15
ENGINE IMPROVEMENTS FOR CONSTRUCTION AND REPAIR OF ETIQUES.
AT96108B
(en )
1924-02-25
Oil transformer with laterally arranged expansion vessel.
GR348B
(en )
1922-10-17
METHOD OF USING MINERAL OIL OILS AND BODY CARBOHYDRATES.
DK33553C
(en )
1924-08-18
Regulator for Petroleum engines and the like.
DK29878C
(en )
1922-07-03
Transformer oil.
GR69B
(en )
1921-05-19
IMPROVEMENTS IN AND IN RELATION TO THE MACHINE FOR THE CONSTRUCTION OF PIPES, OVENS AND SIMILAR.
AT112385B
(en )
1929-02-25
Oil burner.
GR39B
(en )
1921-03-24
OVEN FOR THE MELTING OF VASALTOS AND OTHER ROCKS.
GR43B
(en )
1921-03-29
PERFECTION OF BOILER OVENS AND SIMILAR SIMILARS.
GR570B
(en )
1924-12-12
IMPROVEMENTS IN AND IN RELATION TO OIL GAS PRODUCTION.
ES77333A1
(en )
1921-05-01
Improvement in the esterification of oils.
DK40733C
(en )
1929-09-09
Petroleum engine.
FR568267A
(en )
1924-03-21
Valve for any fluids and gases
GR212B
(en )
1921-12-13
NEW METHOD OF REFINING AND VENTILATION OF TURBI AS OF SOME LIGNITES.
FR535159A
(en )
1922-04-11
Carburetor heater, new model, heavy coal oil and petroleum
GR347B
(en )
1922-10-17
METHOD OF IMPROVING THE PROPERTY OF KOLOFONI.
FI10925A
(en )
1925-11-27
Med Petroleum arbetande koknings- och uppvärmningsapparat
GR1327B
(en )
1926-11-02
PACKAGING AGAINST THE CABLET AND CORROSION OF BOILERS.
GR1692B
(en )
1927-12-14
METHOD OF PREPARATION OF ORIGINAL OIL.
FI9150A
(en )
1922-09-15
Petroleum gas brand
GR1334B
(en )
1926-11-10
PRODUCTION OF LIME BY BURNING CRUDE OIL AND BLACK.