ZA728342B
(en )
1974-07-31
Improvements in or relating to insulating materials
ZA731896B
(en )
1974-05-29
Improvements in or relating to ozonisers
ZA733315B
(en )
1974-04-24
Improvements in or relating to connection elements
ZA731352B
(en )
1973-11-28
Improvements in or relating to telephones
ZA732966B
(en )
1974-06-26
Improvements in or relating to eartags
ZA738251B
(en )
1974-10-30
Improvements in or relating to antibiotics
HK14679A
(en )
1979-03-30
Improvements in or relating to anchors
ZA722898B
(en )
1973-06-27
Improvements in or relating to pipes
ZA733375B
(en )
1975-01-29
Improvements in or relating to concrete pipes
ZA737327B
(en )
1974-10-30
Improvements in or relating to mine brattices
ZA73858B
(en )
1974-03-27
Improvements in or relating to mixing mechanisms
ZA73509B
(en )
1974-09-25
Improvements in or relating to vibrating devices
IE38343B1
(en )
1978-02-15
Improvements in or relating to fences
ZA733833B
(en )
1974-04-24
Improvements in or relating to syringes
ZM1673A1
(en )
1974-02-21
Improvements in or relating to building structures
ZA732392B
(en )
1974-11-27
Improvements in or relating to dentures
HK65778A
(en )
1978-11-24
Improvements in or relating to fasteners
MY7800059A
(en )
1978-12-31
Improvements in or relating to building construction
ZA722669B
(en )
1973-07-25
Improvements in or relating to mats
ZA73566B
(en )
1973-10-31
Improvements in or relating to screens
ZA73483B
(en )
1973-10-31
Improvements in or relating to building methods
MY7600200A
(en )
1976-12-31
Improvements in or relating to aerators
ZA738623B
(en )
1975-04-30
Improvements in and relating to structures
HK32579A
(en )
1979-05-25
Improvements in or relating to building methods
ZA72322B
(en )
1972-11-29
Improvements in or relating to concrete