HK17584A
(en )
1984-03-02
Improvements in or relating to humidifying apparatus
GB2000040B
(en )
1982-04-21
Improvements in or relating to filters
ZA787058B
(en )
1979-11-28
Improvements in or relating to plansifters
ZA786956B
(en )
1980-03-26
Improvements in or relating to clotheslines
PH15678A
(en )
1983-03-11
Improvements in or relating to pyrazinobenzodiazepines
ZA783263B
(en )
1979-06-27
Improvements in or relating to envelope assemblies
ZA782942B
(en )
1979-05-30
Improvements in or relating to class manufacture
ZA774778B
(en )
1979-03-28
Improvements in or relating to glycerokinases
ZA786693B
(en )
1979-11-28
Improvements in or relating to foam
ZA774654B
(en )
1978-06-28
Improvements in or relating to dartboards
DE2861017D1
(en )
1981-11-26
Improvements in or relating to decollators
ZA773282B
(en )
1978-04-26
Improvements in or relating to ventilators
ZA777307B
(en )
1979-05-30
Improvements in or relating to humidifiers
PT68169A
(en )
1978-07-01
Improvements in or relating to envelope assemblies
HK31280A
(en )
1980-06-13
Improvements in or relating to toys
ZA783773B
(en )
1980-02-27
Improvements in or relating to pesticides
ZA777682B
(en )
1978-10-25
Improvements in or relating to boilers
HK8582A
(en )
1982-03-05
Improvements in or relating to index-selector devices
ZA775919B
(en )
1978-10-25
Improvements in or relating to building
EG12730A
(en )
1980-07-31
Improvements in or relating to furnaces
GB2279502B
(en )
1995-05-24
Improvements in or relating to aerial arrangements
ZA784347B
(en )
1979-09-26
Improvements in or relating to signwriting
ZA771743B
(en )
1978-02-22
Improvements in or relating to matches
ZA802073B
(en )
1981-05-27
Improvements in or relating to electro-precipitation
ZA77527B
(en )
1977-12-28
Improvements in or relating to stoves