AU203544B2
(en )
1954-12-16
Improvements in or relating to electric signalling systems
AU201562B2
(en )
1955-03-17
Improvements in or relating to electrical signalling systems
AU202358B2
(en )
1955-06-09
Improvements in or relating to electrical signalling systems
AU204930B2
(en )
1955-04-07
Improvements in or relating to electrical signalling systems
AU204931B2
(en )
1955-04-07
Improvements in or relating to electrical signalling systems
AU204932B2
(en )
1955-04-07
Improvements in or relating to electrical signalling systems
AU90654A
(en )
1954-12-16
Improvements in or relating to electric signalling systems
AU355354A
(en )
1955-04-07
Improvements in or relating to electrical signalling systems
AU355154A
(en )
1955-04-07
Improvements in or relating to electrical signalling systems
AU355254A
(en )
1955-04-07
Improvements in or relating to electrical signalling systems
AU313854A
(en )
1955-03-17
Improvements in or relating to electrical signalling systems
AU520454A
(en )
1955-06-09
Improvements in or relating to electrical signalling systems
AU203143B2
(en )
1955-02-03
Improvements in and relating to electric signalling systems
AU167298B2
(en )
1954-03-25
Improvements in or relating to electrical selecting systems
AU204554A
(en )
1955-02-03
Improvements in and relating to electric signalling systems
AU2452954A
(en )
1954-03-25
Improvements in or relating to electrical selecting systems
AU201368B2
(en )
1955-01-20
Improvements in or relating to filing systems
AU201201B2
(en )
Improvements in or relating to electric pulse communication systems
AU201046B2
(en )
1955-02-03
Improvements in or relating to electrical signalling apparatus
AU201701B2
(en )
1954-12-16
Improvements in or relating to telecommunication systems
AU165035B2
(en )
1954-04-01
Improvements relating to falut signalling in telephone systems
AU158890B2
(en )
1953-07-30
Improvements in or relating to electrical signalling systems
AU161569B2
(en )
1953-07-30
Improvements in or relating to electrical signalling systems
AU211654B2
(en )
1956-05-17
Improvements in or relating to electric telemetering systems
AU163477B2
(en )
1954-03-25
Improvements in or relating to electrical control systems