CH288232A
(en )
1953-01-15
Device for fine machining of workpiece surfaces.
AT175180B
(en )
1953-06-10
Device for centerless, chip-removing tangential machining of workpieces according to cylindrical surfaces
FR987924A
(en )
1951-08-21
Continuous humification of waste
CH277755A
(en )
1951-09-15
Device for fine machining of cylindrical workpiece surfaces.
CH244291A
(en )
1946-09-15
Machine for polishing the face of stone.
CH259128A
(en )
1949-01-15
Soap purification process.
FR917478A
(en )
1947-01-08
Process for filtering slimes
CH284858A
(en )
1952-08-15
Adjustable tool for fine machining of bores.
FI20914A
(en )
1945-12-10
Utility of the vehicle for vertical and vertical operation
CH247377A
(en )
1947-02-28
Plant for grinding grain.
FR896678A
(en )
1945-02-28
Device for precision dressing of grinding wheels
CH275867A
(en )
1951-06-15
Process for the purification of alumina.
AT189089B
(en )
1957-02-25
Device for grinding, polishing or other fine machining of workpiece surfaces
AT175823B
(en )
1953-08-25
Device for grinding, polishing or other fine machining of workpiece surfaces
CH239260A
(en )
1945-09-30
Spindle for grinding.
AT175510B
(en )
1953-07-25
Device for machining cylindrical outer surfaces of workpieces
FR57406E
(en )
1953-01-28
Alumina extraction process
FR904885A
(en )
1945-11-19
Process for preserving pickles
FR900026A
(en )
1945-06-18
Treatment of fermentable materials
AT167886B
(en )
1951-03-10
Center punch for lathe headstock
FR986637A
(en )
1951-08-02
Hydrocarbon purification process
FI23385A
(en )
1948-12-10
Iron lathe blade carriage lead screw thread lock
FR981424A
(en )
1951-05-25
Process for the synthesis of hydroxy-4-coumarins substituted in position 3
CH251465A
(en )
1947-10-31
Cylindrical grinding process.
FR903629A
(en )
1945-10-10
Gluing process of veneer sheets