ZA786956B
(en )
1980-03-26
Improvements in or relating to clotheslines
ZM2578A1
(en )
1978-10-23
Solar water heater
GB2029555B
(en )
1983-02-02
Improvements in or relating to hot water systems
GB2007046B
(en )
1982-03-24
Water heaters
IL52175A0
(en )
1977-07-31
Improvements in solar heaters
ZA775873B
(en )
1979-01-31
Improvements in or relating to water heaters
DE2861017D1
(en )
1981-11-26
Improvements in or relating to decollators
JPS53104442A
(en )
1978-09-11
Solar water heater
ZA774286B
(en )
1979-01-31
Improvements in or relating to solar water heaters
ZA775553B
(en )
1978-12-27
Improvements in or relating to solar water heaters
PH20092A
(en )
1986-09-24
Improved water heater
ZA774249B
(en )
1978-11-29
Improvements relating to water heaters
ZA771503B
(en )
1979-02-28
Improvements in or relating to solar heaters
ZA772977B
(en )
1978-08-30
Improvements in or relating to solar heaters
ZA775703B
(en )
1978-12-27
Improvements in or to solar heaters
ZA765323B
(en )
1977-08-31
Improvements in or relating to water fittings
ZA767162B
(en )
1977-10-26
Improvements relating to water heaters
ZA777682B
(en )
1978-10-25
Improvements in or relating to boilers
ZA776573B
(en )
1979-06-27
Improvements in or relating to water filters
GR65742B
(en )
1980-10-29
Improvements in or relating to heaters
MY8200115A
(en )
1982-12-31
Improvements in or relating to breakwaters
GR65361B
(en )
1980-08-20
Improvements in or relating to small boats
HK70883A
(en )
1983-12-30
Improvements in or relating to multi-frequency control arrangements
ZA761138B
(en )
1977-02-23
Improvements in or relating to heaters
JPS5413397A
(en )
1979-01-31
Sensor for use in water