MY7600232A
(en )
1976-12-31
Improvements in or relating to yeast
HK42277A
(en )
1977-08-19
Improvements in or relating to semiconductors
MY7500223A
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1975-12-31
Improvement in or relating to keyboards
ZA716948B
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1973-06-27
Improvements in or relating to mechanisms
ZA713261B
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1972-01-26
Improvements in or relating to structural members
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1972-06-28
Improvements in or relating to manhole assemblies
ZA713838B
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1972-02-23
Improvements in or relating to seals
ZA71290B
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1971-10-27
Improvements in or relating to screening
ZA71477B
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1971-10-27
Improvements in or relating to stoppers
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1972-08-30
Improvements in or relating to heat-exchangers
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1972-07-26
Improvements in or relating to fasteners
ZA712556B
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1972-01-26
Improvements in or relating to pipes
ZA713561B
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1972-01-26
Improvement in or relating to furnaces
ZA705425B
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1971-12-29
Improvements in or relating to gaskets
ZA71761B
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1971-10-27
Improvements in or relating to buildings
ZA717426B
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1972-08-30
Improvements in or relating to garbage reseptacles
ZA718505B
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1972-09-27
Improvements in or relating to nuts
ZA71202B
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1971-10-27
Improvements in or relating to screw-pumps
ZA707259B
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1971-07-28
Improvements in or relating to gaskets
ZA71396B
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1971-10-27
Improvements in or relating to fasteners
ZA711946B
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1972-10-25
Improvements in or relating to antibiotics
ZA705648B
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1972-03-29
Improvements in or relating to antibiotics
ZA713685B
(en )
1972-01-26
Improvements in or relating to sulphonylsemicarbazides
ZA714284B
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1972-08-30
Improvements in or relating to fuse-holders
ZA705172B
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1971-12-29
Improvements in or relating to braais