PH10686A
(en )
1977-08-10
B-dikstones and their use as metal extractants
ZA747921B
(en )
1975-12-31
Improvements in and relating to the refining of metals
ZA741707B
(en )
1975-07-30
Determining heavy element concentration in ores
ZA73533B
(en )
1973-10-31
Concentration of nickel values in oxidized ores
ZA747764B
(en )
1975-12-31
Improvements in and relating to the refining of metals
ZA741684B
(en )
1975-02-26
Improved electroplating processes and compositions
ZM9075A1
(en )
1976-03-22
Concentration of ore by flotation
ZA747922B
(en )
1975-12-31
Improvements in and relating to the separation of metals
HK20177A
(en )
1977-05-06
Improvements in or relating to retaining rings
ZA755978B
(en )
1976-08-25
Improvements in or relating to the electrodeposition of gold
MY8000223A
(en )
1980-12-31
Improvements in and relating to magnetic materials
ZA748253B
(en )
1976-01-28
Improved enzyme complexes and their use
PH10102A
(en )
1976-08-25
Concentration of nickel values in oxidized ores
ZA732908B
(en )
1974-04-24
Concentration of precious metals
ZA743372B
(en )
1975-05-28
Improvements in and relating to ferrous alloys
ZA74229B
(en )
1975-01-29
Pelletizing ores and concentrates
ZA751067B
(en )
1976-01-28
Improvement in the selective reduction of oxidised metal ores
ZA738192B
(en )
1975-02-26
Improvements in electroplating
JPS5286913A
(en )
1977-07-20
Concentration of tinaium ore
ZA746959B
(en )
1975-11-26
Improvements in and relating to structural elements
AU6560474A
(en )
1975-08-14
Extracting nickel and other metals
ZA728449B
(en )
1974-04-24
Separation of metals in cobalt-copper-iron mixtures
ZA73930B
(en )
1974-10-30
Separation of metals in cobalt-copper-iron mixtures
AU6407474A
(en )
1975-07-03
Leaching of nickel ores
ZA744913B
(en )
1975-08-27
Groynes and their manufacture