DK50098C
(en )
1935-04-08
Method for Manufacturing Lubricating Oils of High Viscosity Index and Low Stiffening Point.
FR808657A
(en )
1937-02-12
Lubricating oil
FR735378A
(en )
1932-11-05
Non-explosive lubricant
FR806075A
(en )
1936-12-07
Lubricating oils
IS119A7
(en )
1931-05-02
Lubricating oils and a method of making them
DK54677C
(en )
1938-05-02
Process for refining oils and fats.
AT134368B
(en )
1933-07-25
Firing cabinet for oil firing.
DK52359C
(en )
1936-11-30
Method of Continuous Production of Colloidal Sulfur.
DK52397C
(en )
1936-12-07
Procedure for Conversion of Hydrocarbon Oils.
ES121492A1
(en )
1931-03-01
Procedure to regenerate used lubricating oils.
DK54485C
(en )
1938-03-21
Method of Manufacture of Magnium.
ES127218A3
(en )
1932-10-01
A procedure to improve the properties of lubricating oils.
DK59736C
(en )
1942-05-04
Method for Increasing the Viscosity of a Tempered Glass Object.
DK47156C
(en )
1933-04-03
Method of Making High Percentage Transparent Soaps.
DK50328C
(en )
1935-06-11
Procedure for Purifying Used Mineral Oil.
DK51364C
(en )
1936-03-09
Procedure for Conversion of Hydrocarbon Oils.
DK53328C
(en )
1937-07-19
Plant for Continuous Extraction of Grease and Oil.
DK48687C
(en )
1934-04-30
Lubricating oil.
DK56197C
(en )
1939-05-22
Procedure for Cracking Hydrocarbon Oils.
DK39692C
(en )
1929-01-07
Procedure for Manufacturing Lubricating Oil.
DK51064C
(en )
1935-12-23
Process for refining fats and oils.
DK56866C
(en )
1939-10-30
Procedure for Continuous Decomposition of Soapable Oils and Fats.
DK47142C
(en )
1933-03-27
Method of Manufacture of Fertilizers.
DK54480C
(en )
1938-03-21
Method of Making High Percent Transparent Soaps.
GR3246B
(en )
1931-06-15
METHOD AND MACHINERY OF MAKING SEALS (TYPE OF OILS).