ZA712161B
(en )
1972-01-26
Improvements in or relating to electrical switches
MY7600037A
(en )
1976-12-31
Improvements in or relating to electrical connections
HK41976A
(en )
1976-07-09
Improvements in or relating to electric timepieces
HK41776A
(en )
1976-07-09
Improvements in or relating to electric watches
HK42277A
(en )
1977-08-19
Improvements in or relating to semiconductors
ZA732672B
(en )
1974-03-27
Improvements in or relating to electrical installations
ZA711543B
(en )
1972-08-30
Improvements in or relating to insulating materials
AU458590B2
(en )
1975-03-06
Improvements in or relating to electric circuits
MY7500176A
(en )
1975-12-31
Improvements in or relating to electrical signalling apparatus
ZA716467B
(en )
1972-06-28
An improvement in or relating to enclosed switchgear
ZA71296B
(en )
1971-10-27
An improvements in or relating to plug-in type switchgear
ZA703973B
(en )
1972-01-26
Improvements in or relating to the location of faults in cables
ZA712296B
(en )
1972-11-29
Improvements in or relating to insulators
MY7300498A
(en )
1973-12-31
Improvements in or relating to telecommunication cables
ZA712556B
(en )
1972-01-26
Improvements in or relating to pipes
ZA698118B
(en )
1971-05-27
Improvements in or relating to electrical conduits
ZA711683B
(en )
1971-12-29
Improvements in or relating to overhead electric conductors
ZA71202B
(en )
1971-10-27
Improvements in or relating to screw-pumps
ZA717672B
(en )
1972-08-30
Improvements relating to electric cables
AU1699970A
(en )
1972-01-06
Improvements in or relating to electrical apparatus
ZA715618B
(en )
1972-04-26
Improvements in or relating to boxes
ZA698119B
(en )
1971-10-27
Improvements in or relating to electrical conduit fittings
AU431886B2
(en )
1972-01-06
Improvements in or relating to electric cable
ZA704198B
(en )
1971-02-24
Improvements in or relating to electric cables
ZA705475B
(en )
1971-11-24
Improvements in or relating to cable racking