FR825494A
(en )
1938-03-03
Improved process for the treatment of textiles
BE378569A
(en )
1931-04-30
Furnace for floor treatment of zinc ores
FR821978A
(en )
1937-12-17
Process for the metallurgical treatment of strongly zinc-bearing iron ores
BE378046A
(en )
1931-04-30
Furnace for the treatment of zinc ores on hearth
FR734202A
(en )
1932-10-18
Subsequent treatment of tinctures
FR730585A
(en )
1932-08-18
Improvements in processing of iron sulphide ores
FR783400A
(en )
1935-07-11
Apparatus for the treatment of household waste
FR701236A
(en )
1931-03-13
Improvements to conveyor furnaces for heat treatment of metals
FR43725E
(en )
1934-08-09
Method and installation for the treatment of household waste
FR726765A
(en )
1932-06-03
Process for the treatment of furs
FR773980A
(en )
1934-11-28
Process improvements for the treatment of oxidized ores
FR748925A
(en )
1933-07-13
Improvements to processes for the treatment of mineral oils
FR715495A
(en )
1931-12-03
Process for the treatment of dolomites
FR711291A
(en )
1931-09-07
Process for the treatment of dolomites
FR821878A
(en )
1937-12-15
Roasting reaction process for the treatment of lead ores
FR701237A
(en )
1931-03-13
Improvements to furnaces for the heat treatment of metals
FR649273A
(en )
1928-12-20
Process for the treatment of iron ores
FR799839A
(en )
1936-06-20
Process for the treatment of meggen pyrite cremates
FR807875A
(en )
1937-01-23
Basic agglomerates for steel furnace hearths
FR731789A
(en )
1932-09-08
Process for the treatment of artificial silk
FR680263A
(en )
1930-04-28
Vacuum cleaners applicable to furnaces for the treatment of ores
IE12923L
(en )
1934-04-10
Treatment of ores
FR760306A
(en )
1934-02-20
Process for the treatment of musts of all kinds
FR734841A
(en )
1932-10-28
Process for the treatment of household waste
FR40320E
(en )
1932-06-09
Process for the additional treatment of activated fragmentary carbonaceous material