HK20380A
(en )
1980-04-25
Improvements in or relating to respirators
YU39245B
(en )
1984-10-31
Improvement in an air purifier
ZA748208B
(en )
1976-01-28
Improvements in or relating to mechanical changing systems
ZA755957B
(en )
1976-08-25
Improvements in or relating to glass manufacture
ZA75746B
(en )
1976-01-28
Air conditioning terminal assembly
ZA772356B
(en )
1978-03-29
Improvements in or relating to air conditioners
IL46827A0
(en )
1975-05-22
Improvements in or relating to wired broadcasting systems
ZA751884B
(en )
1976-02-25
Improvements in or relating to tennis-rackets
HK5778A
(en )
1978-02-03
Improvements in or relating to relay circuits
ZA755256B
(en )
1976-07-28
Improvements in or relating to tyres
EG12682A
(en )
1979-09-30
Improvements in and relating to air conditioning
ZA754999B
(en )
1976-07-28
Improvements in or relating to wired broadcasting systems
ZA757890B
(en )
1976-11-24
Improvements in or relating to antibiotics
ZA745289B
(en )
1975-08-27
Improvements in or relating to air conditioning terminal units
HK11084A
(en )
1984-02-17
An improvement in or relating to scissors
ZA754064B
(en )
1976-09-29
Improvements in constructional units
ZA757378B
(en )
1976-12-29
Improvements in or relating to gel systems
JPS5644024A
(en )
1981-04-23
Air purifier
ZA755249B
(en )
1977-03-30
Improvements in or relating to antibiotics
ZA755724B
(en )
1976-08-25
Improvements in or relating to wired broadcasting systems
ZA743178B
(en )
1975-05-28
Improvements in and relating to air conditioner
ZA756018B
(en )
1976-09-29
Air conditioning system
ZA732145B
(en )
1974-05-29
Improvements in or relating to air conditioning
ZA752664B
(en )
1976-08-25
Improvements in or relating to air conditioning
ZA747555B
(en )
1975-12-31
Improvements in or relating to air line lubricators