ZA742939B
(en )
1975-12-31
Improvements in or relating to burners
ZA745162B
(en )
1975-11-26
Improvements in or relating to coke ovens
ZA743716B
(en )
1975-06-25
Improvements in or relating to lifting apparatus
ZA747921B
(en )
1975-12-31
Improvements in and relating to the refining of metals
ZA747461B
(en )
1975-12-31
Improvements in or relatiing to the pouring of metals
ZA744349B
(en )
1975-07-30
Improvements in or relating to antibiotics
ZA745331B
(en )
1975-10-29
Improvements in or relating to antibiotics
ZA747764B
(en )
1975-12-31
Improvements in and relating to the refining of metals
ZA743023B
(en )
1975-05-28
Improvements in or relating to cephalosporins
HK20177A
(en )
1977-05-06
Improvements in or relating to retaining rings
PH14775A
(en )
1981-12-09
Improvements in or relating to welding
ZA748B
(en )
1975-08-27
Improvements in or relating to conveyors
ZA748174B
(en )
1976-01-28
Improvements in or relating to fire-arms
ZA743727B
(en )
1975-06-25
Improvements in or relating to mine hoists
ZA747031B
(en )
1975-11-26
Improvements in or relating to water-cooled lance for metallurgical furnances
AU6952674A
(en )
1975-12-04
Metallurgical furnaces
ZA741309B
(en )
1975-02-26
Improvements in or relating to packagung
ZM7770A1
(en )
1971-03-22
Improvements in or relating to furnaces
ZA738001B
(en )
1975-03-26
Improvements in or relating to metallurgical furnaces
ZA738285B
(en )
1974-09-25
Improvements relating to furnaces
ZA713561B
(en )
1972-01-26
Improvement in or relating to furnaces
ZA738006B
(en )
1974-09-25
Improvements in or relating to woolgrease
ZA743868B
(en )
1975-07-30
Improvements in or relating to display means
ZA727424B
(en )
1973-07-25
Improvements in or relating to refractory elements
ZA745061B
(en )
1975-08-27
Improved in/or relating to furnaces