HK20380A
(en )
1980-04-25
Improvements in or relating to respirators
HK50780A
(en )
1980-09-19
Improvements in or relating to radiography
HK9582A
(en )
1982-03-12
Improvements in or relation to the fabrication of semoconductor device
ZA766578B
(en )
1977-10-26
Improvements in or relating to the manufacture of polymeric foam
ZA755957B
(en )
1976-08-25
Improvements in or relating to glass manufacture
HK79879A
(en )
1979-11-23
Improvements in or relating to the determination of isoenzymes
HK35379A
(en )
1979-06-08
Improvements in or relating to radiography
MY7800057A
(en )
1978-12-31
Improvements in the production of laminates
ZA752089B
(en )
1976-04-28
Improvements in or relating to mixing devices
ZA751258B
(en )
1976-01-28
Improvements in or relating to atomisers
MY7800443A
(en )
1978-12-31
Improvements in or relating to radiography
ZA755974B
(en )
1977-02-23
Improvement in or relating to the manufacture of shoes
EG12580A
(en )
1979-03-31
Improvements in or relating to the manufacture of fibrous artefacts
ZA751884B
(en )
1976-02-25
Improvements in or relating to tennis-rackets
MY7800056A
(en )
1978-12-31
Improvements in or relating to castors
ZA746058B
(en )
1976-04-28
Improvements in or relating to the retreading of tyress
ZA756530B
(en )
1976-09-29
Improvements in or relating to presses
ZA757003B
(en )
1976-10-27
Improvements in or relating to cephalosporins
ZA752989B
(en )
1976-04-28
Improvements in or relating to penicillins
ZA756794B
(en )
1976-10-27
Improvements in or relating to signal smoothing devices
ZA753749B
(en )
1976-05-26
Improvements in or relating to the manufacture of balls
ZA742703B
(en )
1975-08-27
Improvements in or relating to the manufacture of pressed boards
IE40345B1
(en )
1979-05-09
Improvements in or relating to climbing structures
HK70378A
(en )
1978-12-08
Improvements in or relating to radiography
ZA746110B
(en )
1975-12-31
Improvements in or relating to hosereels