ZA776057B
(en )
1978-05-30
Improvements in or relating to cleansing
ZA775368B
(en )
1978-07-26
Improvements in or relating to solar heating panels
PT67081A
(en )
1977-10-01
Improvements in or relating to coatings
ZA771611B
(en )
1978-01-25
Improvements in or relating to solar heating panels
PT65322B
(en )
1978-01-05
Improvements in or relating to inflatable literafts
ZA774475B
(en )
1978-06-28
Improvements in or relating to line advance mechanisms
ZA787058B
(en )
1979-11-28
Improvements in or relating to plansifters
ZA773661B
(en )
1978-05-30
Improvements in or relating to resins
ZA77650B
(en )
1977-12-28
Improvements in or relating to filters
ZA761761B
(en )
1977-09-28
Improvements in or relating to boilers
ZA774778B
(en )
1979-03-28
Improvements in or relating to glycerokinases
HK55781A
(en )
1981-11-20
Improvements in or relating to cleansing
ZA772286B
(en )
1978-10-25
Improvements in or relating to ovens
ZA774654B
(en )
1978-06-28
Improvements in or relating to dartboards
PT67158A
(en )
1977-11-01
Improvements in or relating to polyester resins
ZA762569B
(en )
1977-09-28
Improvements in or relating to pool heaters
ZA764648B
(en )
1977-09-28
Improvements in or relating to mats
ZA773819B
(en )
1978-05-30
Improvements in or relating to granular-bed filters
ZA761138B
(en )
1977-02-23
Improvements in or relating to heaters
ZA761555B
(en )
1977-03-30
Improvements in or relating to electroprecipitation
ZA763229B
(en )
1978-01-25
Improvements in or relating to roadsigns
ZA76870B
(en )
1977-09-28
Improvements in or relating to constructional members
ZA766182B
(en )
1978-05-30
Improvements in or relating to radiators
GR65742B
(en )
1980-10-29
Improvements in or relating to heaters
ZA764694B
(en )
1977-07-27
Improvements in or relating to furnaces